computer getting slow, spyware problem?

Hi, our computer is getting sluggish lately, and seems to have an increase of spyware and virus problems. We use norton antivirus, windows firewall, ad-aware and spybot s&d. The programs seem to get rid of what they detect in the scan, but things just keep coming and aren't getting blocked. I'm hoping to post a hijak this log and see what y'all think, I don't know if it's very bad. I used the HT analyzer and this is what I got:

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Log was analyzed using KRC HijackThis Analyzer - Updated on 8/4/05
Get updates at http://www.greyknight17.com/download.htm#programs

***Security Programs Detected***

C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation (ccPwdSvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
O23 - Service: Norton AntiVirus Auto-Protect Service (navapsvc) - Symantec Corporation - C:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton AntiVirus Firewall Monitor Service (NPFMntor) - Symantec Corporation - C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
O23 - Service: SAVScan - Symantec Corporation - C:\Program Files\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service (SBService) - Symantec Corporation - C:\PROGRA~1\COMMON~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec SPBBCSvc (SPBBCSvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe

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Logfile of HijackThis v1.99.1
Scan saved at 9:36:33 PM, on 9/5/2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\Documents and Settings\Owner.WATKINS\Desktop\Hijack This\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://us9.hpwis.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://srch-us9.hpwis.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://srch-us9.hpwis.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://srch-us9.hpwis.com/
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://us9.hpwis.com/
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://us9.hpwis.com/
O4 - HKLM\..\Run: [HPHUPD05] c:\Program Files\Hewlett-Packard\{45B6180B-DCAB-4093-8EE8-6164457517F0}\hphupd05.exe
O4 - HKLM\..\Run: [AutoTBar] c:\Program Files\Hewlett-Packard\Digital Imaging\bin\AUTOTBAR.EXE
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe /Consumer
O4 - Global Startup: LimeWire 4.0.4.lnk = C:\Program Files\LimeWire\LimeWire 4.0.4\LimeWire.exe
O16 - DPF: {15AD6789-CDB4-47E1-A9DA-992EE8E6BAD6} - http://static.windupdates.com/cab/WebsiteAccess/ie/bridge-c18.cab
O16 - DPF: {200B3EE9-7242-4EFD-B1E4-D97EE825BA53} (VerifyGMN Class) - http://h20270.www2.hp.com/ediags/gmn/install/hpobjinstaller_gmn.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.c...ls/en/x86/client/wuweb_site.cab?1103229270098
O16 - DPF: {76D90D08-EAB7-46D8-BF99-87445BF59E72} (SystemInfo Class) - http://getdway.com/dwayready/dpcsysinfo.cab
O16 - DPF: {DF780F87-FF2B-4DF8-92D0-73DB16A1543A} (PopCapLoader Object) - http://download.games.yahoo.com/games/web_games/popcap/chuzzle/popcaploader_v6.cab


End of KRC HijackThis Analyzer Log.
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any help would be great, thanks!