I have D-Link Router with built-in firewall for the first stage of security. Closes of some critical ports etc. It has hanged and had to be reset a couple of times this year after heavy attacks. Obviously doing it's job :o) Then I have PC-cillin with realtime virus check on all activity and all incoming data. I have on occasion CONSCIOUSLY DL'ed viruses to test the checker, it gets 'em every time! And then I have the PC-cillin Firewall up as well, gets hits many times a day. A lot is non-critical, but about 25% is true hits. Why I use PC-cillin? Because it takes NO overhead off my PC. I can run all my heavyweight apps as usual, PC-Cillin is transparent in all cases but one - when I run Partition Magic and reformat drives, copy partitions etc, I disable PC-cillin temporarily. Also when defragging drives. :] Fish