Screenshots?
How's the spyware issue? Maybe you could surf some warez sites and let us know how you get on. Or font sites, they're even worse for popup hell and spyware shit.
I use XP and OS X, both have their advantages but all the virus shit is starting to piss me off, I'm spending too much cash on security software shit these days, on a personal machine freeware avg & hijack this is enough, but I have a business to protect... in that sense, OS X is way ahead of Windows. Obviously Microsoft know that they need to do something about this in their next version, and I'd like to see what they're going to come up with, but unfortunately I have no spare machine to be installing experimental shit on...
Hopefully it won't be something that is good at first then useless after a few weeks when some leet hax0r group starts to upload exploit info and workarounds...