I have ZA Pro 4.5. It works good as a firewall. It's not antivirus even though it can block it. I use Mcaffe for antivirus. I have Norton it came with my mobo but, havent used it yet. I'm going to get rid of Mcaffe and use norton once I get my comp completed.
P4 2.8 HT Prescott, DDR400 256mb Dual Channel, 120GB HD @7200 rpm, 80GB HD @7200rpm, 16X DVD, 4X DVDR, 480W PSU.