If all you're looking for is some feedback on the cleanliness of your logfile, here's my opinion.
First off, I can see you're using Vista, correct?
* Please note that I only glanced over your log, and am offering an opinion. Any decisions you choose to make are being done at your own risk, and Aurellosoft Computer Security does not take any responsibility for your actions. *
Things that look suspicious:
O4 - HKCU\..\Run: [oovoo.exe] C:\Program Files\ooVoo\oovoo.exe /minimized
O2 - BHO: ooVoo Toolbar - {A057A204-BACC-4D26-8087-36EE87E26986} - C:\PROGRA~1\OOVOOT~1\OOVOOT~1.DLL
O3 - Toolbar: ooVoo Toolbar - {A057A204-BACC-4D26-8087-36EE87E26986} - C:\PROGRA~1\OOVOOT~1\OOVOOT~1.DLL
Valid program that are not required to run on startup:
C:\Program Files\BigFix\bigfix.exe
Junk Entries: (Can be removed)
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O23 - Service: Marvell Yukon Service (yksvc) - Unknown owner - RUNDLL32.EXE (file missing)
I also noted
O23 - Service: GameConsoleService - WildTangent, Inc. - C:\Program Files\Gateway Games\Gateway Game Console\GameConsoleService.exe
Which is sometimes detected as Adware.WildTangent, however, removing it can cause the WildTangent programs to stop working. So you may want to delete it if you no longer use the games associated with it.