I don't set pictures of chicks (real or art) as backgrounds or anything, I find it kind of tacky and screaming in desperation, neither of which I am. I usually go with fantasy setting backgrounds or epic Gurren-Lagann art.
Right now it's some dude atop a hill summoning a full-screen phoenix XD
EDIT: I'm not hating really, just picking on your inferior taste in women, Greyfox, even video game women, and then picking on the XBOX, which frankly deserves it, haha (so many people that I know having issues w/ that thing).