I just thought this might come in handy. It's a USB->3.3v TTL converter used to program the Parallax Propeller chip. It has a standard FTDI USB interface on it and by clipping 2 pins off the TTL connector it will plug right into the back of the seagate drives perfectly.
I know Parallax have distributors across the globe, so I thought those of you looking for USB->TTL converts might find this handy.
I'm taking one home with me just in case my drives fail when I shut the machine down to firmware upgrade them (provided Seagate actually gets a fix out anyway).
Hope this might help someone.
<edit> Oh friggin 'eck. I've just read the Seagate forums. I'm not that BradC!
$25 is too expensive though.
This one does the same thing for 50% off.
If you're getting CC, BSY and/or 0 LBA error, then yes.