I own one of the previous gen Intel MP's (2.66GHz quad core) with the Radeon X1900 XT graphics card. I use this computer professionally for video editing and even though I am dealing with high def footage from all types of sources it is coping just fine. I didn't feel that the Octo core would give enough of a performance boost to warrant upgrading due to the way that many programs, even in the Pro Apps line do not use multi-core processing very well. Snow Leopard seems to be promising a large performance increase with better use of multi cores and Open CL for GPU usage for calculations. The question is, will the X1900 be compatible with this? I keep reading conflicting reports. Some seem to suggest that there is no reason why it shouldn't be able to, while others say no way. Is there any definitive answer to this, or is it down to Apple to come up with drivers that would enable it? If it can't, what are my options for upgrading the graphics card in my MP to enable the use of OpenCL functionality? I like to run my equipment into the ground before upgrading. I don't like chasing technology if for the most part my computer does what it needs to. But if I can get a suitable processing speed bump for FCP etc through Snow Leopard if it means a simple graphics card update then it sounds reasonable to do.