LiNUX - The best Antivirus software ever made
Yeah, antivirus is needed, but only if you are using OS which is actually virus itself. I have Linux and don't worry about viruses, because there are none WORKING viruses for linux (and for those which exist - you have apply special patches to the linux kernel. You can also make discformat manually - same result and effort). All my games work fine on Linux. Trackmania (through Wine), SPORE, The Sims 3, even Crysis (not for me, because I prefer games other than FPP but my friend managed it to run). So there are also no problems with games as some stupid persons think.
So yeah, I agree with author's P.S. but feel a need to elaborate why it is better. More on http://whylinuxisbetter.net