Reviving this thread as TAMS has these AMD servers again on ebay, but without caddies. I still got one, though. The picture indicates v2.01a revision motherboard, but we'll see what shows up. I bought Supermicro caddies from another vendor for $10 each.
http://www.ebay.com/itm/Supermicro-SC846TQ-24-Bay-SATA-4U-AMD-2-0GHz-8GB-DDR2-MB-H8DME-2-Server-/150895641247?pt=COMP_EN_Servers&hash=item232214c29f