Bicameral day... having firmware issues with the Zen Jukebox after failing to sync my library with it in a number of ways (WMP 10, NotMad). Tried updating the firmware to "Plays for Sure" and that for sure didn't play -- the Nomad boots into Rescue Mode and the computer won't recognize it any more to upgrade the firmware.
On the storage side of things, still trying to figure out whether I should invest in SCSI or SATA, as well as whether to buy a new box (e.g. with faster CPU, SATA RAID built-in, etc).
On storage: AnandTech's Server Guide Part 2, which explains seek time vs. latency, as well as compares a SATA drive with a SCSI drive:
FireWire vs. USB 2.0: