I think I found my fix (Thanks Kcarlile). After looking at your link I started thinking. Still a little more research to do, but I think I can use one of these
http://www.provantage.com/supermicro-aoc-saslp-mv8~7SUP918N.htmfor $100 and then just run SAS cables thru a slot in the back of the server to SAS Centronex connectors on the back of the HTPC case. Still disconnectable, still connects the 8 drive bays in the HTPC to the server. Not as "clean" but doable, acceptable and cheap....It's the back side of a rack afterall
For a little more clarification, I'm using WHS, so don't need hardware raid. just JOBD
Think!? I'm there