NO NO NO never Ad-Aware!!! It's just a spyware/malware of it's very own!! Spybot S&D is a good one. The F-Secure suite I run has antispy/malware included, so the SpyHunter 3 is doing a good job side by side.

I let it run every morning when I boot up, and it cleans all the crap out of my browser history nice and neat. I have FS set up to run a full scan every Friday morning at 1 am, and it's generally finished by the time I get up the next morning.