Originally posted by ren0nie0
say if i installed a geforce 7900 gt? would that still be within the boundaries of the antec power supply in question?
While it would have plenty of power, if I were you I would get the 550watt version. It doesn't cost much more, and it is more futureproof. Though, watts doesn't have much to do with it..it's always better to have a lot. A 7900gt is required to have a 450watt PSU (I think). So a 500watt is just over the required amount.
Though, it will still work fine if you get the 500watt.