I've been running the same stuff for the past couple of years now.

I have the windows Firewall disabled, and in it's place I run Kerio Personal Firewall (which has been absolutely great). I also use AVG Antivirus 7.1 (paid version).

I actually bought the two pieces of software in a bundle, and the cost was very reasonable. I think my subscription to AVG is running out this year, however, and I aren't sure if I will be renewing.

I don't like the fact that AVG tries to run a complete system scan every morning when I start the computer. I know I could stop it fromdoing so, but I think AVG's scanning system as a whole takes up far too much CPU, and slows things down. I may be looking for an alternative.