Nice job thats a clean log!!
Download the following programs, For keeping crap off your system to begin with
Prevent the installation of ActiveX-based spyware, adware, browser hijackers, dialers, and other potentially unwanted pests.
Block spyware/tracking cookies in Internet Explorer and Mozilla/Firefox.
Restrict the actions of potentially dangerous sites in Internet Explorer.
Download
Spyware Blaster and
SpywareGaurd
Check for updates after you install them, And check weekly as well
Keep Ad-aware and Spybot handy, Check them for updates and run them weekly
Same with your Anti Virus,
Be sure and give the Temp folders a cleaning out now and then as well, Make sure after you clean your Temp files to empty out your Recycle bin as well.
Remeber to
Check Windows for updates