There are a lot of good sites about this proboem. Just surf around and get those sites related to products information, reviews, etc., and you'll find planty of information.
You can always get in touch with great people like the Panda Team, in Spain, they have created a fantastic too called Panda Antivirus, it is one of the best, and it is certainly much better than Norton itself because it scans the WHOLE system every time.
They can provide you every two or three days, via mail, all the information of the latest problems and dangers in virus, worms, etc., it worth a try.
I'm rather amazed a guy like you, working all the time related to the net, is without an antivirus or a firewall, I strongly recomend you to start using them, even if you don´t like them... It's like washing your teeths every day, you don't like it but its truly necesary.
