For just a little different slant on the above replies. I used Counterspy, AVG, Acronis security, Spybot, Zonealarm, and Adaware. Then I realized I was spending 1 to 2 hours perday with scans and updates to protect my Graphics. So I got a new PC and installed Mepis Linux that I found in a book titled Point and Click Linux. Its a live Cd and will boot to Linux with out an install so you can test it on any PC. I now use a CD-RW to move any downloads. Most of the badies don't bother Linux and it has a built-in firewall with all ports closed by default. Oh and this version is very windows like,,, I was up and running in an hour.