>There is also a free version of ZoneAlarm, which I used for a while. It worked fine and was easy to install. Now I use the Professional Version which did not cost very much and it makes my Internet experience much more enjoyable! I will check out AVG - thanks for the info. I have never liked Norton and McAfee is not what it once was.

I use AVG (free anti-virus) and it seems to work fine.
I used Zone Alarm, both free and paid versions then settled on Outpost firewall (http://www.agnitum.com) which I like.