I've been using Nortons for years. some versions were good, others not so good. The not so good mostly involved delays waiting for it to load parental controls as my kids used the PC also. This years version (2008) is the best in a long time. Installed easy, is ready as soon as the screen comes up after logging in and seems to work beautifully. I've never had a virus in 5 1/2 years since I built this box. I wonder what others are doing to be picking up infections constantly? When picking an AV app, it mostly boils down to what interface you like and how many features you need or want. With Nortons I don't use the anti-spam (Thunderbird and my email provider filter out over 99%) or anything related to malware. Strictly virus, firewall and parental controls. I think a lot of the hatres you see on the boards for Norton is pretty much irrational as it has run great for me for quite awhile.
Also, am running the new kaspersky beta for W7 and everything is working great there also.