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      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>UNITED
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        AND EXCHANGE COMMISSION</strong></font></div>
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        D.C. 20549</font></div>
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      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 18pt; FONT-FAMILY: Times New Roman"><strong>Form
        8-K</strong></font></div>
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      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 18pt; FONT-FAMILY: Times New Roman"><strong>Current
        Report</strong></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>&#160;</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Pursuant
        to Section 13 or 15(d) of the Securities Exchange Act of
        1934</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Date
        of
        Report</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>&#160;</strong></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Date
        of
        earliest event reported):</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>
        October 17, 2005</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 18pt; FONT-FAMILY: Times New Roman"><strong>RITA
        Medical Systems, Inc.</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Exact
        name of registrant as specified in its charter)</font></div>
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      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>000-30959</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Commission
        File Number)</font></div>
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                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">&#160;<strong><font size="2">Delaware</font></strong></div>
              </td>
              <td width="50%">
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">&#160;<strong><font size="2">94-3199149</font></strong></div>
              </td>
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                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">&#160;<font size="2">(State
                  or other jurisdiction
                  of&#160;</font></div>
              </td>
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                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">&#160;<font size="2">(I.R.S.
                  Employer Identification
                  No.)</font></div>
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            <tr bgcolor="#ffffff">
              <td width="50%">
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">&#160;<font size="2">incorporation)</font></div>
              </td>
              <td width="50%">&#160;</td>
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      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>46421
        Landing Parkway</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Fremont,
        CA 94538</strong></font></div>
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        of principal executive offices, with zip code)</font></div>
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      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>(510)
        771-0400</strong></font></div>
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      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Check
        the
        appropriate box below if the Form 8-K filing is intended to simultaneously
        satisfy the filing obligation of the registrant under any of the following
        provisions (</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><em>see</em></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
        General
        Instruction A.2. below):</font></div>
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                  communications pursuant to Rule 425 under the Securities Act (17
                  CFR
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            <tr valign="top" style="LINE-HEIGHT: 1.25">
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                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Soliciting
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                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pre-commencement
                  communications pursuant to Rule 14d-2(b) under the Exchange Act
                  (17 CFR
                  240.14d-2(b))</font></div>
              </td>
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      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
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            <tr valign="top" style="LINE-HEIGHT: 1.25">
              <td style="WIDTH: 18pt">&#160;</td>
              <td style="WIDTH: 18pt">&#160;<font style="FONT-FAMILY: Wingdings">o</font></td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pre-commencement
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                  (17 CFR
                  240.13e-4(c))</font></div>
              </td>
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        </table>
      </div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div><br>
      <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
        <div id="FTR">
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          <div style="WIDTH: 100%; TEXT-ALIGN: center">
          </div>
          <div style="WIDTH: 100%; TEXT-ALIGN: center">
            <hr style="COLOR: black" noshade size="2">
          </div>
        </div>
        <div id="HDR">
          <div id="GLHDR" style="WIDTH: 100%" align="right">
          </div>
        </div>
      </div><br>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Item
        1.01</strong></font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Entry
        into a Material Definitive Agreement</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant
        to the terms of an offer letter, dated October 11, 2005 (the &#8220;Agreement&#8221;), from
        RITA Medical Systems, Inc. (the "Company") to Michael D. Angel, Mr. Angel
        commenced employment with the Company on October 17, 2005 in the position
        of
        Chief Financial Officer. Pursuant to the terms of the Agreement, Mr. Angel
        shall
        receive an annual salary of $250,000 and he will be entitled to participate
        in
        the Company's management cash bonus program. In addition, the Company will
        issue
        to Mr. Angel an incentive stock option to purchase 300,000 shares of the
        Company's common stock. These option shares will become exercisable at the
        rate
        of 1/8 of the total number of shares after the first six months of October
        17,
        2005 and then with respect to 1/48 of the total per month, such that the
        options
        will become fully vested at the end of four years. </font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
        Agreement also provides for the payment of severance in certain circumstances.
        Mr. Angel's agreement provides that if his employment by the Company is
        terminated without cause, and provided that he resigns from his position
        with
        the Company, actively seeks full time employment and executes the Company's
        standard form of release agreement releasing any claims he may have against
        the
        Company, Mr. Angel will receive monthly severance payments equal to 1/12th
        of
        his annual base salary for 12 months until such time as he accepts an offer
        of
        employment or consulting relationship which constitutes the equivalent of
        a
        full-time position. In addition, following termination of employment without
        cause, Mr. Angel will be entitled to reimbursement for his continued medical
        coverage until the earlier of (i) six months after his termination date or
        (ii)
        such time as he becomes eligible for insurance benefits from another employer.
        </font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
        description of the standard form of change of control agreements and
        indemnification agreements entered into between Mr. Angel and the Company
        set
        forth in Item 5.02 of this Current Report on Form 8-K is incorporated by
        reference herein.</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Times New Roman">The
        foregoing description of the Agreement is qualified in its entirety by reference
        to the Agreement, a copy of which is attached hereto as Exhibit&#160;10.94
        and
        incorporated herein by reference. </font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Item
        5.02 </strong></font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Departures
        of Directors or Principal Officers; Election of Directors; </strong></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Appointment
        of Principal Officers.</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">On
        October 17, 2005, the Board appointed Michael D. Angel, age 49, to serve
        as
        Chief Financial Officer of the Company effective October 17, 2005. Prior
        to
        joining the Company, from April 2004 to July 2005, he was Executive Vice
        President and Chief Financial Officer of Proxim Corporation, a provider of
        wireless networking products, the assets of which were acquired by Terabeam
        Wireless in July 2005. From July 2005 to September 2005, Mr. Angel served
        as a
        consultant to Proxim Wireless Corporation, a wholly-owned subsidiary of Terabeam
        Wireless utilizing the assets of Proxim Corporation. From March 2003 to April
        2004, he acted as an independent consultant providing financial consulting
        services for various technology companies. In May 2003, he served as Vice
        President and Chief Financial Officer at Omnivision Technologies, Inc., a
        technology company. From September 1999 to December 2002, Mr. Angel served
        as
        Executive Vice President and Chief Financial Officer of Spectrian Corporation,
        a
        wireless infrastructure company. Mr. Angel is a certified public accountant
        and
        holds a B.S. degree from California State University, Chico.</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
        <div id="FTR">
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          </div>
        </div>
        <div id="PN" style="PAGE-BREAK-AFTER: always">
          <div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">-2-</font></div>
          <div style="WIDTH: 100%; TEXT-ALIGN: center">
            <hr style="COLOR: black" noshade size="2">
          </div>
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        <div>&#160;</div>
      </div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">In
        connection with Mr. Angel's appointment to the office described above, on
        October 17, 2005, the Company issued to Mr. Angel pursuant to the Company's
        2005
        Stock Incentive Plan an incentive stock option to purchase 300,000 shares
        of the
        Company's common stock, par value $0.001 per share, at a price of $3.42 per
        share, exercisable at the rate of 1/8 of the total number of shares after
        the
        first six months of October 17, 2005 and then with respect to 1/48 of the
        total
        per month, such that the options will become fully vested at the end of four
        years.</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 27pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
        Company has entered into its standard form of change of control agreements
        and
        indemnification agreements with Mr. Angel. The Company&#8217;s change of control
        agreements provide the following benefits upon the sale or merger of the
        Company. In the event that the Company consummates a change of control
        transaction, 50% of any unvested options held by the Company officers shall
        become fully vested and immediately exercisable and repurchase rights retained
        by the Company with respect to 50% of the restricted stock held by the Company&#8217;s
        officers shall immediately lapse. In addition, on each one month anniversary
        following the effective date of a change of control transaction, 1/12th of
        the
        remaining unvested options held by the Company&#8217;s officers shall become fully
        vested and immediately exercisable and repurchase rights retained by the
        Company
        with respect to 1/12th of any remaining restricted stock held by the Company&#8217;s
        officers shall immediately lapse. If the officer is involuntarily terminated
        within 12 months after the change of control transaction, all unvested options
        held by the Company&#8217;s officers shall become fully vested and immediately
        exercisable and all repurchase rights retained by the Company with respect
        to
        the restricted stock held by the Company&#8217;s officers shall immediately lapse. If
        the officer voluntarily resigns or is terminated for cause after the change
        of
        control, then the officer is not entitled to any acceleration of the vesting
        of
        options or lapse of repurchase rights with respect to restricted
        stock.</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
        Company&#8217;s indemnification agreements contain provisions which may require the
        Company, among other things, to indemnify the Company&#8217;s officers and directors
        against a number of liabilities that may arise by reason of their status
        or
        service as officers or directors (other than liabilities arising from willful
        misconduct of a culpable nature) and to advance their expenses incurred as
        a
        result of any proceeding against them as to which they could be indemnified.
        Insofar as indemnification for liabilities arising under the Securities Act
        of
        1933 may be permitted to directors, officers or persons controlling the Company
        pursuant to the foregoing provisions, the Company has been informed that
        in the
        opinion of the SEC such indemnification is against public policy as expressed
        in
        the Securities Act and is therefore unenforceable.</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
        description of the employment agreement between Mr. Angel and the Company
        set
        forth in Item 1.01 of this Current Report on Form 8-K is incorporated by
        reference herein.</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
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          <div style="WIDTH: 100%; TEXT-ALIGN: center">
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        <div>&#160;</div>
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      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Times New Roman"><strong>Item
        8.01 Other Events. </strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">On
        October 18, 2005, the Company announced that it had appointed Michael D.
        Angel,
        age 49, to serve as Chief Financial Officer of the Company. The full text
        of the
        press release issued in connection with this announcement is attached as
        Exhibit
        99.1 to this Current Report on Form 8-K. </font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Times New Roman"><strong>Item
        9.01</strong></font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Times New Roman"><strong>Financial
        Statements and Exhibits.</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(c)</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Exhibits:</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">10.94</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Offer
        Letter to Michael D. Angel dated October 11, 2005</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.1</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Press
        Release of RITA Medical Systems, Inc. dated October 18, 2005</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div><br>
      <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
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          <div style="WIDTH: 100%; TEXT-ALIGN: center">
            <hr style="COLOR: black" noshade size="2">
          </div>
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      </div><br>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>SIGNATURES</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant
        to the requirements of the Securities Exchange Act of 1934, the Registrant
        has
        duly caused this report to be signed on its behalf by the undersigned hereunto
        duly authorized.</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">
        <div>
          <table align="center" bgcolor="#ffffff" border="0" cellpadding="0" cellspacing="0" width="100%">

              <tr valign="top" bgcolor="#ffffff">
                <td width="50%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></td>
                <td width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></td>
                <td width="49%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></td>
              </tr>
              <tr valign="top" bgcolor="#ffffff">
                <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></td>
                <td colspan="2"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">RITA
                  MEDICAL SYSTEMS, INC.</font></td>
              </tr>
              <tr valign="top" bgcolor="#ffffff">
                <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;<br>&#160;</font></td>
                <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;<br>&#160;</font></td>
                <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;<br>&#160;</font></td>
              </tr>
              <tr valign="top" bgcolor="#ffffff">
                <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Date:
                  October __, 2005</font></td>
                <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">By:&#160;&#160;</font></td>
                <td><font size="2">/s/ Joseph DeVivo</font></td>
              </tr>
              <tr valign="top" bgcolor="#ffffff">
                <td colspan="2"><font style="FONT-FAMILY: Times New Roman" size="1">&#160;</font></td>
                <td align="left">
                  <hr style="COLOR: #000000" align="left" noshade size="2" width="80%"><font size="2">Joseph
                  DeVivo</font></td>
              </tr>
              <tr valign="top" bgcolor="#ffffff">
                <td colspan="2"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></td>
                <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">President
                  and Chief Executive Officer</font></td>
              </tr>

          </table>
        </div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 234pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
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          <div style="WIDTH: 100%; TEXT-ALIGN: center">
            <hr style="COLOR: black" noshade size="2">
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          <div id="GLHDR" style="WIDTH: 100%" align="right">
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      </div><br>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>RITA
        MEDICAL SYSTEMS, INC.</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>INDEX
        TO EXHIBITS</strong></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
      <div>
        <table cellpadding="0" cellspacing="0" width="100%">

            <tr>
              <td valign="top" width="15%" style="BORDER-BOTTOM: medium none">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Exhibit
                  Number</u></font></div>
              </td>
              <td valign="top" width="66%" style="BORDER-BOTTOM: medium none">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Description</u></font></div>
              </td>
              <td valign="top" width="4%" style="BORDER-BOTTOM: medium none">&#160;</td>
            </tr>
            <tr>
              <td align="left" valign="top" width="15%">&#160;</td>
              <td align="left" valign="top" width="66%">&#160;</td>
              <td align="left" valign="top" width="4%">&#160;</td>
            </tr>
            <tr>
              <td valign="top" width="15%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">10.94</font></div>
              </td>
              <td align="left" valign="top" width="66%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Offer
                  Letter to Michael D. Angel dated October 11, 2005</font></div>
              </td>
              <td valign="top" width="4%">&#160;</td>
            </tr>
            <tr>
              <td valign="top" width="15%">
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              </td>
              <td align="left" valign="top" width="66%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Press
                  Release of RITA Medical Systems, Inc. dated October 18,
                  2005</font></div>
              </td>
              <td valign="top" width="4%">&#160;</td>
            </tr>

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{"company-data": {"conformed-name": "RITA MEDICAL SYSTEMS INC", "cik": "0001056421", "assigned-sic": "3845", "irs-number": "943199149", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-30959", "film-number": "051145686"}, "business-address": {"street1": "967 N SHORELINE BLVD", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94013", "phone": "6503858500"}, "mail-address": {"street1": "967 NORTH SHORELINE BLVD", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94043"}}
UNITED
        STATES
SECURITIES
        AND EXCHANGE COMMISSION
Washington,
        D.C. 20549
Form
        8-K
Current
        Report
Pursuant
        to Section 13 or 15(d) of the Securities Exchange Act of
        1934
Date
        of
        Report
(Date
        of
        earliest event reported):
October 17, 2005
RITA
        Medical Systems, Inc.
(Exact
        name of registrant as specified in its charter)
000-30959
(Commission
        File Number)
Delaware
94-3199149
(State
                  or other jurisdiction
                  of
(I.R.S.
                  Employer Identification
                  No.)
incorporation)
46421
        Landing Parkway
Fremont,
        CA 94538
(Address
        of principal executive offices, with zip code)
(510)
        771-0400
(Registrant's
        telephone number, including area code)
Check
        the
        appropriate box below if the Form 8-K filing is intended to simultaneously
        satisfy the filing obligation of the registrant under any of the following
        provisions (
see
General
        Instruction A.2. below):
o
Written
                  communications pursuant to Rule 425 under the Securities Act (17
                  CFR
                  230.425)
o
Soliciting
                  material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
                  240.14a-12)
o
Pre-commencement
                  communications pursuant to Rule 14d-2(b) under the Exchange Act
                  (17 CFR
                  240.14d-2(b))
o
Pre-commencement
                  communications pursuant to Rule 13e-4(c) under the Exchange Act
                  (17 CFR
                  240.13e-4(c))
Item
        1.01
Entry
        into a Material Definitive Agreement
Pursuant
        to the terms of an offer letter, dated October 11, 2005 (the "Agreement"), from
        RITA Medical Systems, Inc. (the "Company") to Michael D. Angel, Mr. Angel
        commenced employment with the Company on October 17, 2005 in the position
        of
        Chief Financial Officer. Pursuant to the terms of the Agreement, Mr. Angel
        shall
        receive an annual salary of $250,000 and he will be entitled to participate
        in
        the Company's management cash bonus program. In addition, the Company will
        issue
        to Mr. Angel an incentive stock option to purchase 300,000 shares of the
        Company's common stock. These option shares will become exercisable at the
        rate
        of 1/8 of the total number of shares after the first six months of October
        17,
        2005 and then with respect to 1/48 of the total per month, such that the
        options
        will become fully vested at the end of four years.
The
        Agreement also provides for the payment of severance in certain circumstances.
        Mr. Angel's agreement provides that if his employment by the Company is
        terminated without cause, and provided that he resigns from his position
        with
        the Company, actively seeks full time employment and executes the Company's
        standard form of release agreement releasing any claims he may have against
        the
        Company, Mr. Angel will receive monthly severance payments equal to 1/12th
        of
        his annual base salary for 12 months until such time as he accepts an offer
        of
        employment or consulting relationship which constitutes the equivalent of
        a
        full-time position. In addition, following termination of employment without
        cause, Mr. Angel will be entitled to reimbursement for his continued medical
        coverage until the earlier of (i) six months after his termination date or
        (ii)
        such time as he becomes eligible for insurance benefits from another employer.
The
        description of the standard form of change of control agreements and
        indemnification agreements entered into between Mr. Angel and the Company
        set
        forth in Item 5.02 of this Current Report on Form 8-K is incorporated by
        reference herein.
The
        foregoing description of the Agreement is qualified in its entirety by reference
        to the Agreement, a copy of which is attached hereto as Exhibit 10.94
        and
        incorporated herein by reference.
Item
        5.02
Departures
        of Directors or Principal Officers; Election of Directors;
Appointment
        of Principal Officers.
On
        October 17, 2005, the Board appointed Michael D. Angel, age 49, to serve
        as
        Chief Financial Officer of the Company effective October 17, 2005. Prior
        to
        joining the Company, from April 2004 to July 2005, he was Executive Vice
        President and Chief Financial Officer of Proxim Corporation, a provider of
        wireless networking products, the assets of which were acquired by Terabeam
        Wireless in July 2005. From July 2005 to September 2005, Mr. Angel served
        as a
        consultant to Proxim Wireless Corporation, a wholly-owned subsidiary of Terabeam
        Wireless utilizing the assets of Proxim Corporation. From March 2003 to April
        2004, he acted as an independent consultant providing financial consulting
        services for various technology companies. In May 2003, he served as Vice
        President and Chief Financial Officer at Omnivision Technologies, Inc., a
        technology company. From September 1999 to December 2002, Mr. Angel served
        as
        Executive Vice President and Chief Financial Officer of Spectrian Corporation,
        a
        wireless infrastructure company. Mr. Angel is a certified public accountant
        and
        holds a B.S. degree from California State University, Chico.
-2-
In
        connection with Mr. Angel's appointment to the office described above, on
        October 17, 2005, the Company issued to Mr. Angel pursuant to the Company's
        2005
        Stock Incentive Plan an incentive stock option to purchase 300,000 shares
        of the
        Company's common stock, par value $0.001 per share, at a price of $3.42 per
        share, exercisable at the rate of 1/8 of the total number of shares after
        the
        first six months of October 17, 2005 and then with respect to 1/48 of the
        total
        per month, such that the options will become fully vested at the end of four
        years.
The
        Company has entered into its standard form of change of control agreements
        and
        indemnification agreements with Mr. Angel. The Company's change of control
        agreements provide the following benefits upon the sale or merger of the
        Company. In the event that the Company consummates a change of control
        transaction, 50% of any unvested options held by the Company officers shall
        become fully vested and immediately exercisable and repurchase rights retained
        by the Company with respect to 50% of the restricted stock held by the Company's
        officers shall immediately lapse. In addition, on each one month anniversary
        following the effective date of a change of control transaction, 1/12th of
        the
        remaining unvested options held by the Company's officers shall become fully
        vested and immediately exercisable and repurchase rights retained by the
        Company
        with respect to 1/12th of any remaining restricted stock held by the Company's
        officers shall immediately lapse. If the officer is involuntarily terminated
        within 12 months after the change of control transaction, all unvested options
        held by the Company's officers shall become fully vested and immediately
        exercisable and all repurchase rights retained by the Company with respect
        to
        the restricted stock held by the Company's officers shall immediately lapse. If
        the officer voluntarily resigns or is terminated for cause after the change
        of
        control, then the officer is not entitled to any acceleration of the vesting
        of
        options or lapse of repurchase rights with respect to restricted
        stock.
The
        Company's indemnification agreements contain provisions which may require the
        Company, among other things, to indemnify the Company's officers and directors
        against a number of liabilities that may arise by reason of their status
        or
        service as officers or directors (other than liabilities arising from willful
        misconduct of a culpable nature) and to advance their expenses incurred as
        a
        result of any proceeding against them as to which they could be indemnified.
        Insofar as indemnification for liabilities arising under the Securities Act
        of
        1933 may be permitted to directors, officers or persons controlling the Company
        pursuant to the foregoing provisions, the Company has been informed that
        in the
        opinion of the SEC such indemnification is against public policy as expressed
        in
        the Securities Act and is therefore unenforceable.
The
        description of the employment agreement between Mr. Angel and the Company
        set
        forth in Item 1.01 of this Current Report on Form 8-K is incorporated by
        reference herein.
-3-
Item
        8.01 Other Events.
On
        October 18, 2005, the Company announced that it had appointed Michael D.
        Angel,
        age 49, to serve as Chief Financial Officer of the Company. The full text
        of the
        press release issued in connection with this announcement is attached as
        Exhibit
        99.1 to this Current Report on Form 8-K.
Item
        9.01
Financial
        Statements and Exhibits.
(c)
Exhibits:
10.94
Offer
        Letter to Michael D. Angel dated October 11, 2005
99.1
Press
        Release of RITA Medical Systems, Inc. dated October 18, 2005
-4-
SIGNATURES
Pursuant
        to the requirements of the Securities Exchange Act of 1934, the Registrant
        has
        duly caused this report to be signed on its behalf by the undersigned hereunto
        duly authorized.
RITA
                  MEDICAL SYSTEMS, INC.
Date:
                  October __, 2005
By:
/s/ Joseph DeVivo
Joseph
                  DeVivo
President
                  and Chief Executive Officer
-5-
RITA
        MEDICAL SYSTEMS, INC.
INDEX
        TO EXHIBITS
Exhibit
                  Number
Description
10.94
Offer
                  Letter to Michael D. Angel dated October 11, 2005
99.1
Press
                  Release of RITA Medical Systems, Inc. dated October 18,
                  2005
-6-