A network admin with no virus scan!?! You can be extremely careful of what you click on and still get hit with viruses. You either have extremely good luck, or you don't go to many web sites.

My husband and I are both network administrators, so I am pretty much shocked that you don't run any virus protection. I recommend anyone who connects to the internet, receives email and attachments, runs any instant messaging, have a virus program running at all times!

BTW, the newer Norton's AntiVirus software not only detects viruses, it recognizes Adware.
I use Nortons in conjunction with Adaware and on occasion Spybot anyway.