I just purchased my first Mac... a used Mac Pro...2 x2.66 dual core with 8 gb of ram and a 7300GT video card. (built Aug 2007) I want to upgrade the video card. I have tried to follow earlier postings, but need a bit more clarification... It appears that the 8800GT mac version is the only recommended card, but Apple no longer sells them. I can still find these 1st gen cards on eBay for approx $250-280. I have also read where others of you have installed new cards, such as the 4870, in your 1st gen mac, but using these newer cards seems to require some "flashing" of the card or other such tweaks--which, unfortunately, I am not that familiar with. With the 8800GT, it seems you can just swap out the cards, update the drivers and you are good to go... am I wrong in thinking that the newer cards are more difficult to get up and running? Would appreciate any advice.