Scott,
I have heard...

SP2 has a much improved built in firewall, that is suppose to be a big improvement from the original XP Firewall.

I was told that when you update to SP2 you should run only one firewall. Either your Norton or the new built in XP firewall.

Having both running at the same time will cause a conflict. I'm not sure how good the new XP Firewall will be, so I would probably keep Norton and disable the XP firewall.

If the new XP firewall actually does the job, I probably would not pay for a service that is not needed.

So again, it is a "Wait and See" attitude on not only SP2, but also let's "wait and see" on SP2 XP Firewall's performance.

Larry