If anyone owns a Western Digital My Book Studio Edition external drive (the one with Firewire, eSATA, and USB interfaces) and has reconfigured it to run in Raid 1 (mirrored) instead of Raid 0 (striped), I'd be interested in hearing your thoughts about the deficit in file transfer speed. Alternatively, if anyone has thoughts on the best external HD on firewire which can be configured to Raid 1 (I'm way too paranoid for Raid 0), the floor is all yours. I'm using the external HD for basic video editing, on a C2D Mac Mini, with FW400. As you might very well infer, there are already speed compromises in this set-up, so I'm wondering whether the additional drop in nimbleness with Raid 1 is a bridge too far, and whether there might be a better-tailored option. Cheers, Andrew.