Nebbish,
Also remember that you have a choice to run in RAID 0 or Striped (no redundency - just fast) or RAID 1 or Mirrored (Safe - everything written is written to both drives). You will get the best performance from RAID 0, with the Velociraptor MyBook, at greater than 200MB/sec. RAID 0 on the stand MyBook Thunderbolt Duo will get you around 200MB/sec. Of course, with any benchmark numbers, everything is dependent on file sizes and etc. Both should be great for video but the Velociraptor MyBook is Best.
Enjoy!
