I've decided it's time to buy a mac pro. I'm a freelance video editor and often work with a variety of video codecs, from DV to ProRes 422. I've set myself a budget of roughly £2000 and have decided upon the stock config (plus AirPort Extreme Card, obviously) with a 23" ACD. My 15% HE discount (I work for an affiliate of the local university) brings this within my budget. However, I could stretch to a little more if needs be. My real question is this: will the stock ATI Radeon HD 2600 XT video card do a half-decent job with video editing? I've heard that the NVIDIA GeForce 8800 GT upgrade has really buggy drivers, and actually performs worse in Final Cut Pro than the stock option. I'm not a gamer and I won't be doing any fancy 3D work (well, not yet). It's just video rendering and compressing that I'm interested in, plus reliable performance in FCP. Opinions?