I bought a $3000 iMac specifically for one thing: to play WoW and record natively without the UI showing. There's no other way of doing that other than running Mac OS X on a Linux/Windows machine, so it was the killer application for me at the time.
I haven't played WoW in 1.5 years and am getting royally sick of Apple forcing me to use various applications with this or that, and not having access to some gov't websites, and compatibility issues and weird screwy things like how to re-size/maximize open windows.
So I was strongly considering building a Windows PC now that I finally have a real job (ex-Navy, 2 years unemployed). For some gaming, but mostly just video editing/internet/random stuff, that would be upgradeable as well, not just something I'd replace in 5 years. Plus I like learning about things.
Where do I start learning? Online someplace? Local community college? I'm guessing buying components on-line is cheapest, but Fry's and similar stores would give me someplace to go and talk to competent people about what I'm buying face to face - can't beat that human interaction for actually learning things quickly? I'm guessing Best Buy wouldn't have as great a selection of parts?
P.s. After 5 years with a Mac I have very little experience with anti-virus stuff, which will be a major learning point for me.