my anti virus program is apple OSX. I've been free of virus hassles for 6 years now and very thankful.

i am also planning on setting up a ubuntu computer as well. for anybody who isn't planning to get super technical then it's a good option. if your pc is mainly internet surfing then i would run if along side or inside windows and jus boot up ubuntu for when surf the web. at least that's my plan with any pc hardware I may pick up in the future. it's actually not all that had to do. plus with ubuntu there's tons of open source programs that will let you do tons of stuff that you would pay to do with windows.