I will not be getting SP2 in any way, shape, or form. There are a few applications that I have that I'd have to upgrade or replace($$$) in order for them to keep on working, and I can't afford them. I use either Windows' built in firewall or ZoneAlarm Free (depending on what I'm doing), browsers that block popups already, avast! anti-virus, and stay away from doubtful websites. My machine works just fine as it is now with SP1. Plus I've heard that roughly half of the PCs it's installed on run really slow, or are unable to boot up properly... quite a few horror stories.
Tom