I've been using AVG for about a month now and it finds my remote administration tools every time it scans, it doesn't give an alert for my keylogger (kslogger) that I run when my guest account is enabled though. It doesn't have an exclude list AFAIK which would be nice. Before that I had an expired Norton NIS and its bundled firewall. I tried the comodo free AV and it nearly hosed me, for some reason my desktop would freeze when I hit the start button.
The free commodo firewall is the best soft firewall I have found, I've tried kerio, sygate, and zonealarm pro, too but comodo has all of the features I want and the other 2 free ones don't, or they are buried too deep in the program, I like it better than Zonealarm too because the popup alerts dont steal focus and take my keystrokes for allow or deny while I'm typing in another app, and it seems faster and more responsive with all the same features. It also seems better for laptop use than zonealarm did.
I go to lots of sketchy websites btw.