three options I'm running Norton 2003 at home right now since I got a free demo-license good for 12 months. Its nice getting vendor-scratch to encourage a favourable review of their software for my company... Our corporate standard is Trend Microscan...free copies for everyone (site license), at home and work. I'd use it if not for Norton, but i have a slight concern that its 'corporate friendly' configuration might blow away amusing e-mails or files (e.g. "Monkeyboy.mpg is not a corporate environment friendly application and will be quarantined"). AVG is what I recommend to everyone else. The only disadvantage with 'free' is that one day it might become 'not-free' without any advance notice.