I have an 8 core 2.8 Mac pro with 10gb ram, the 8800 GT video card and 4 sata drives. I also have a santa rosa MBP with the 2.4 processor, 4 gb ram and a 160 7200rpm hard drive. I run Adobe Master Collection CS3 and FCP Studio 2. What sort of performance improvements can I expect with Snow Leopard? Will the OS or softwares use multiple cores and ram better? Will the hard rives work faster? Will I need to update the two app suites I listed before I can see any real improvement in performance? I understand that maybe the CS5 versions from Adobe will finally make full use of ram and multiple processors. What about FCP? Will Snow Leopard only improve performance on the latest/upcoming hardware or will my older machines see a noticeable performance improvement?