So i've finally decided on the following setup: KAV+Comodo+a couple other diagnostic tools. But one thing i don't have yet is a anti-spyware app. I looked at several free/paid offerings and so far the only one that looks to actually fulfill its role is spyware terminator. However i suddenly remembered m$ once offering somthing of its own to tackle spyware. I've never tried windows defender as it was still beta last time i looked but i think its alpha now, though i'm not sure (no references are made on m$'s website as to beta or alpha anymore). So i ask you: is windows defender any good? Or is it another one of those apps that suffer from the same achillies heel as spyware terminator (or that of any other real-time scanning anti-spyware app - cpu overload)?