Anti-Virus Recommendations

[IdahoB]

I've been using Norton 2003 for ages now, but I'm tired of the way it slows the system down so much. I upgraded to 2004 but found that even worse (everytime the little box popped up telling me my system was waiting for a scan to finish I wanted to kill someone).

I'm thinking it may be time for a radical change - so what do you guys all prefer? The only ones I've experienced are McAfee and Norton and I know there's a lot else out there.