I currently have 2 Samsung F1 750s and the stock 320 in an early 2008 2.8 Octo with 8GB of RAM. I use FCE, PS CS3, Aperture and the usual suspects all with some frequency. Current drive setup: 320 boot, 2x750s in RAID1 setup. Proposed setups: 4 Samsung F1 750s in a RAID 1+0 - encompassing boot and user directory and work disk all in 1 1.5TB striped, redundant workspace. Current setup, but stripe Samsung disks 2 and 3 instead of RAID1 and just backup a lot. 1.5 TB workspace. Perhaps add a scratch disk. Similar to the above option, but get a faster boot disk and make the 320 a scratch disk (disk 4) Any thoughts on the above? Other configurations? I don't want to buy a RAID card. Thanks!