You do, and you and I can be friends. OK?
I’m holding you to that... Note that it means not just YOUR “version” of truth, though...
So for the original poster, I’d recommend getting Win7; it can do everything that WinXP does, and runs WinXP great in a full-screen mode.
And about the Mac suggestion - I’d say avoid it, it’s too expensive for what you get, and if you do technical work, then realize that all the decent (or in fact, pretty much ONLY) technical design software (schematic capture, PCB layout, 3D CAD) is on Windows, so having a Mac simply doesn’t work.