I renewed it last month on my wife's computer, but, I had my daughter install AVG
. It's free for home users, and I've read good things about it. There's a lot of talk about Norton and McAfee being specifically targeted by the virus writers, so they are actually much less effective now than some of the smaller players.
Of course, if you have a firewall, and don't open suspicious e-mail attachments, and stay away from contaminated web sites, you might get lucky enough to not get any. Or, you could switch to Linux or Mac OS X.