HAI! I just bought a Drobo 4-bay (2nd gen) and loaded it up with 3x WD Caviar Black 1tb. I've got it connected to my computer via FW800, formatted as HFS+, updated to latest firmware, and I'm getting about 30MB/s maximum write speed when transferring stuff onto it from my computer. Tested it by copying a large video file via Finder and I'm also transferring about 135gb of photos+video using rsync. Does 30MB/s sound right? That's less than 300mbps EDIT: Tested on both my laptop and beasty iMac.