Sorry for the delay MD. Most of the dual Xeon motherboards I have dealt with had two additional molex connectors, or 1 additional molex and 1 4 pin P4 connector for the power.
I know there is going to have to be additional power plugs for the Xeon's as there is no way to get the power needed through the standard ATX power plug.
I have never seen a motherboard requiring some unique power plug, but if this board does, I would like to know about it.
EDIT: Oh wait, I think I misunderstood. You are talking about power supplies that meet the EPS12V spec. Not many of those around for cheap. Antec has a Tru550 model that meets EPS12V. You can get it at Newegg for $122.00 (U.S.).