OK I have an old mac pro (4x2.66 Core, 9GB RAM) with the stock 7300 GT graphics card. As I am told that the 2600 XT is compatible with the old MAc Pro do people think this is a worthwhile upgrade (fairly cheep only £90) or is there any better route? My system is not used for any games or anything under windows and is primarily used for Final Cut Studio 2 projects (dabble a little bit in motion and blender projects but not much). The 8800 GT is currently unavalable and according to some of the posts actually worse for FCS2 anyway. The Quadro upgrades seem ludicrously priced, and the only other option is the X1900 is a very old card that I have heard has some issues. Any views on what would be best for me? Also if I do upgrade is there any advantage in keeping the 7300GT as a second card other than using extra monitors?