HI I have a large raid 0 made with the Rocket raid 1820 A and 6 10 000 RPM I use Softraid to partition the RAID instead of the software delivered with the card because Softraid is much faster ;-) You can use Softraid with just 2 SATA It's a great software ! (www.softraid.com) sales at softraid.com concerning partitions : please find after my organization : The G5 2x2 160 GB (disk 1) is dedicated for audio and video it has 3.5 GB of memory. I use QLSO platinum and my samples are on a RAID 0 made with the RocketRaid card + Softraid + 6 x 10 000 rpm Raptor disk (random read of 1024 K segments thruput 345.089 MB/sec) I have : - 2 Lacie FW 800 disk that I only plug when I do the backups - a Sony camera on the FW - an extra Sata 250 GB in the G5 (disk 2) The architecture : One volume for the system (disk 1) One volume for the swapfiles (disk 2) One volume for the updates I have done (disk 1) One volume for the Logic songs (disk 2) One volume for the video footage (disk 2) One volume for the EXS24+ VSL guitare + Kontakt lib (disk 2) One volume for the QLSO platinum library (Raid 0) a few empty volumes Best Cyril