I have a first-revision DP 1.8 with the BTO 64mb Radeon 9600. It's okay, but I'm starting to notice how limited it is -- especially in some games. Now, with a PC, the choice would be a snap. I'd just hit Newegg, pick from the sea of video cards, and be off on my merry way. But the PowerMac throws me. Is there something inherently special about the Mac versions of the Radeon cards that prevents me from getting any old AGP Radeon -- other than that some cards need a molex power connector? If that's the case, I'm not adverse to getting a Y-splitter from the optical drive to make that go. Otherwise, what's my real upgrade path here? Straight to a 9800 Pro / Mac Edition or the new GeForce card? Is there anything in between? I'd rather not spend $300 just to make Postal 2 look a little better.