I was about to give up on firewalls to, but in the end i went with Kaspersky internet suite which includes their antivirus. I got it mainly for the antivirus but it was an option, for a bit more money, of course, to get the whole thing so i did. Seems to work ok for me and i got so sick and tired of hunting for free stuff that didnt work the way i wanted, i want no interference mostly, but the options are there to do what you want. It has a 30 day free trial.