I've been selling these off one at a time on ebay:
http://www.ebay.com/itm/120805985441
...and I've got 8 left.
If you're interested in them as coraid hardware, I do have 3 of the Coraid CLN/20 heads available, as well as assorted other 1 and 2u servers.
If anyone is interested in one or more, please email me at
jeff@awkwardgenius.com I am located in Southern California.
Thanks!