I used to prefer Norton over McAfee but I've long since dropped both of them for NOD32.
Hands down, the very best anti-virus I've ever used and it's NON-INVASIVE. I can work with NOD32 without the fears and interuptions inherant with NAV or McAfee.
Check out NOD32 at:
www.pcrnr.com It rates the HIGHEST of any AV ever tested! That says alot in my book. If you like it as much as I do, you can download it right then and there. I don't know if you can pick it up anywhere else, but that's where I got my copy and I've been virus free ever since.
Not a product push or a site push... just a product that I'm in love with and I wanted to share that.
NAV would be #2 for me... and McAfee... well... use the CD as target practice.
GoPC