I was using Kaspersky Total Security. It was a really good deal with computer magazine subscription (about $38 for 1 year subscription + KTS). Now this magazine is no longer being published, so there is no such a good deal. I choosed to use Kaspersky Free, beacause I wasn't really using any other Total Security feature other than antivirus and firewall. The only missing piece is firewall and looks like Kaspersky don't like Zone Alarm (there was an instalation error). Windows Firewall is working fine, but it's quite ... raw. I was wondering if there is any reasonable compatible firewall. Looks like I'll stay with Windows Firewall ... for now at least. Btw. TinyWall looks like good addition to Windows Firewall.