I've seen AVG mentioned a few times. Don't think I've heard of them before recently, however. There are actually a lot of AV vendors out there. As I go down the list, I wonder "which of these companies is just a front for virus writers?" <g>
>If it's anti virus you seek, AVG has a free version that is terrific. I have the Zone alarm integrity client firewall too. It's versitile and worth a look.