FYI they just got a new shipment of the SCSI2HD boards a couple days ago, and are available again. I just ordered 2 of them.
http://imall.itead.cc/scsi2sd.html
How do those things go? Work okay with 4GB SD?
BTW a word of caution on the Aztec Monster units. I could only get mine to work at 2GB. Which is better than nothing but not worth the price tag.