Given that I have both and I am an absolute gadget freak. I say if you are buying for games go with the Xbox and just buy a $100 Blu ray player-- prices will be lower on black friday (depending what size your TV is).
- Xbox's online player system is much more robust. Also the netflix stability/functionality is great on the 360.
- You have Gears of War, Halo, and Xbox exclusive games which are awesome. No doubt PS3 has some titles like GoWIII, MGS4, GT5, etc. -- it really depends on the genre
- If I were you I'd just go on Craigslist and snag up the Ps3 and xbox 360 used combined for the price of a new one. You can like pick up an old 40 gig ps3 and a xbox 360 20gb pro for a great price on craigslist.