Hi everyone... I've got an original mac pro 1,1... as we all know, the Nvidia 7300 isn't cutting it at all for SC2... as such, I'm trying to weigh my options as far as upgrading the GPU... I don't think that I'm really a hard-core gamer... I'd like to make sure that I can play SC2 and Diablo III when it comes out... Civilization 5 whenever it comes out would be nice as well... As I see it, I have the following choices... Apple ATI4870 Probably not the wisest choice as it's $$$$ and "outdated" tech, right? But it is guaranteed to work... PC ATI4870 (Flashed) While it's "outdated" too, it's considerably cheaper and more powerful than Apple's version... while I am sure I could pull the flashing off, I do have a couple of concerns... Damaging my Mac Pro? - this is a home computer so I'd be in a pickle if I toasted it somehow... Impact of OS X upgrades? - how smoothly do upgrades go with flashed cards? Do they just "work" once you flash them? Or are there quirks and such that one must consider? Apple ATI5870 Not sure if this will even be an option... but it's probably best to wait and see if it works before doing anything? Though, the wait for SC2 will be hard ;-) Thanks!