Geek buddy of mine told me on some dweeby computer talk show, they set up a rig and it only had WinXPSP2 on it. With the IP address on the screen. The deal was, if anyone could hack it in 48hours, the computer was theirs. Needless to say, nobody won the computer and apparenlty there were a high number of attacks made. I dunno, I used to use Zone Alarm, but for now, been using WinXPSP2, tested it on some sites and apparently all ports are blocked with the WinXPSP2 one, so for now, I use that.