Ha, seems like you can only edit post for a limited amount of time.
2qwakrz: I was going to post that firewire updating was possible but dishinit posted that his update wasn't 100%.

Chipset: Cypress AT2 Interface: USB 2.0

Tester: krymson
Best Firmware: none known
Compatibility: Does not work with firmware G7M9, B7K9, B7P9 , A7L9

Firmware updates should be performed over direct IDE. That means stick it inside a desktop computer and flash it there. The ability to flash update as mentioned by qwakrz with prolific firewire seems to be the exception and not the rule.

You can find chipset information on most popular external enclosures at Dealsonic's External Enclosure Section . They have pretty good prices too