Hi there, this is my first post on these forums but I've been lurking for about three years now. Anyway, I have a sort of specific request that I haven't seen discussed on these forums yet. I have an original mac pro 1,1 Quad 2.66Ghz with 5GB of RAM, ATI x1900XT, an Apple RAID card, the e-sata extension cables, and lots of hard drives to throw at it! Currently I'm running in a RAID5 with four 320GB Seagate drives, but I'm trying to find out what would be the best setup for Final Cut Studio. The manual and several online resources strongly suggest using a separate drive for the Scratch Disk for FCP. So the question is, what's the best combo for me? Some options I've thought of so far are: 1. Run a RAID0 with the four 320GB drives as the scratch disk, and have a 500GB e-sata boot drive. Then purchase a 1TB and 500GB for time machine backups though Airport Extreme. 2. Run a RAID0 or 5 internal boot drive, and use an e-sata scratch disk. Then purchase a 1TB drive for backups on the Airport Extreme. Currently I have four 320GB drives and a 500GB drive. So I guess my real question is, which combination will give me the best performance? (personally I'm leaning toward the latter option as it is the cheapest, heh.) Sorry for such a long first post, but I wanted to be thorough. Oh, and thanks for any help you guys can give me!