If you already have norton installed... is that antivirus that you are talking about?

Norton also has an Internet Security package. It integrates NAV and works pretty well. It is not as bad of a resource hog as Macafee though.

I use it and I like it. I don't see much activity on it though... as I'm behind a router/firewall...

If your looking to go the free route... take a look at Outpost

Zone alarm also has a free one.

I think that is what you were asking...