Hmmm iv just been doing abit of math and now i can see that if i do buy a Nvidia 8800GTX i will need a new PSU i have a 350w one at the moment and they recomend a 450w one so mines out the window. Once i have the new PSU i wont be able to use my UPS witch is 400VA so i see it costing me much more than i first anticipated.