Contrary to popular belief, AV and Firewall are NOT needed. And before you start flaming and calling me a n00b or whatever, I know what I'm on about. IE - I manage a few networks with 200+ computers on. (However all the machine to do with the corporate networks do have AV and firewalls, because company protocol demands it.) Now, I have 9 machines on my home network, NON OF WHICH HAVE AV OR FIREWALL. In the 7 years I have been managing our home network NON of our computers have ever had a hacker attack, trojans, viruses, malware, adware etc... I do however reccommend that you do a regular scan with Ad-Aware (that is all that is needed) and a hardware firewall. That IS all you need. aslong as you dont download sh*tloads of freeware crap, you'll be fine.