An 8 series GPU or the next ATI one would be a good choice if you plan on getting Vista and gaming, when they are realeased.
There isn't anything wrong with it. I could spend £250 on small things that I would like, a tablet for photoshop and Zmodeller (the unlocked version so I can import to it.) If there are things like that, it may be good, but that is really only wasting money.