I've a Mac Pro 1.1 and have been running games under Windows 7 for a couple years now (previously XP) just fine. However, my x1900xt - which has somehow managed NOT to fail like everybody else's, is really starting to show it's age. In lieu of Skyrim being released in this upcoming November, I've been considering saving up and buying a second rig entirely devoted to PC gaming. Now, however, with the 5770 available for the Mac Pro, I'm wondering if it's worth simply going with that and saving myself a lot of money? Have any of you had a similar dilemma, and if so what would you recommend? I intend to run games at my monitor's native resolution of 1900x1080.