I've been reading up on norton 360 5.0. It seems to have negligible performance impact. And a CPU history/usage monitor. That sounds awesome and precisely of what I am talking about. So I will probably get that, uninstall all other anti-virus, RTFM thoroughly and maybe do a clean reinstallation of entire system but with norton up (to ensure I don't have pre-existing virii. That's prob unnecessary, but this is really annoying).