Hi everyone, Sorry to keep floating such a common topic, but I've spent a few hours today reading up on the compatibility of various recent graphics cards with the Mac Pro and I don't seem to have come up with a definitive understanding of what the best solution to my upgrade situation is. If you have some time and goodwill, I'd really appreciate some clear advice. I think it's probably most helpful if I start by describing what I'd like to do with the new card/card(s), so here goes: - video editing in Final Cut Pro X; sub-feature length films mostly, but always in HD - Photographic editing in Aperture - Photoshop editing of large files - Gaming (Steam-based on OSX, and I'll likely add a W7 partition at some point too for native PC gaming) That being said, I've been looking at 3 basic options: the 5770, 5870, and the 6870. My understanding is that you used to require a ROM flash to get these cards to be recognized and operational in OSX but that a recent update for the Macbook Pro (which I have access to) has made this unnecessary...or possibly not, it's not terribly clear and is likely based on circumstances. Currently, my computer is running OSX 10.6.8 and I'm afraid I can't upgrade it to Lion right now because of software compatibility issues. The machine has 12GB of RAM, it's the basic 8-core (2 x 2.8 Quad Xeon), and there are 4 harddrives and two disc drives, though I'm happy to disable one of the superdrives if I need its power cable to get the new graphics card running. The current graphics card is a stock Radeon HD 2600 XT powering two 23" cinema displays (the older silver ones from when this model of the Mac Pro was current). So in terms of doing this graphics update, what is my best option for maximum performance and compatibility? Two 5770s (one monitor hooked up to each), a 5870, or the 6870? Or something else entirely? Am I going to need extra cables to hook everything up inside? I do NOT want to have to flash anything if I can avoid it I'm sure I could manage it given some clear instructions, but it's a complication I'd rather avoid. Pardon the wall of text but I wanted to be comprehensive so you know where I'm coming from. Any guidance would be terrific!