I'm looking at upgrading the video card in my MDD G4 from the stock 32MB. I know that the best available for it is the ATI Radeon 9600 Pro, but the mac edition is crazy expensive. I've found a bunch of them from third-party companies (like Sapphire) for a lot cheaper. Any chance that these would work? Or is there a fairly straigtforward approach to flashing the card, that doesn't require a Windows box?