They are about the same amount of money.. so what would give best graphics... Ive got a fairly decent spec pc, but dont know whether to get the 360 or gfx card....
Im not too worried about live, marketplace.. etc.. just gamin!!!
I'd recommend the 8800GT to save some money... which could be used to upgrade that CPU, as it will hold an 8800 series card back!
Otherwise, it's a pretty tough decision.... I bought my PS3 back in April, rather than buy an 8800GTX.
Since then though, the 8800GTX can now be had from OCUK for £240 or so, or better value for money would be the 8800GT, nearly the same performance, for less money, and require less juice from the power supply too!
Also, since March, a carp load of top class PC games are out.
As has been mentioned above, a lot of the XBOX games come out for the PC too, and are in most cases (IMO) better, due to better graphics and control methods (and before I get moaned at about Mouse and Keyboard not being better, you can also plug an XBOX360 controller straight into a PC and use that)
As for social aspects, if you have a HDTV, you can plug your PC into that for gaming if you like ,and choose between 720p and 1080p. If your TV only did 720p the 8800GT would even be overkill!
Consoles do have a lot going for them too though.
The simplicity, no driver faffing, etc... but the games also cost considerably more. At least £10 more generally, if more more, that all adds up, towards the cost of your new card.
COD4, GOW, Bioshock and so on are better on the PC.
The cost of the 8800GT is well worth it.
As I said, I also chose to get a PS3.
My personal reasons for choosing one over the XBOX360 were mainly because, as I said, most of the top games that I'd want to play, that are XBOX360 "exclusives" generally make their way to the PC, even if later rather than sooner, whereas PS3 exclusives stay on the PS3, plus if gives you the chance to easily get into HD movies, with it's in built movie player, and I have to admit, the reliability problems of the XBOX360 were also on my mind. (and again, before I get my head bitten off, the PS3 can fail too, but I think you'll find there's no comparison between that, and XBOX failures)
So there we go, I'm not telling you what to do, just saying what I did. Worked out great for me. There have been some brilliant games on the PS3, and of late some brilliant games on the PC, more than I can get through at the moment, and the 8800GT does them all proud... though of course, Crysis wasn't silky smooth at high details, but, neither would it be on the GTX.
Hope some of this info helps you make a decision.
V1N.