DAMN that LV 5420 is making me salivate for a DP setup.
Funny thing is that just 4GB of FB-DIMM will probably consume more power that 2 of those CPUs.
Thats the only thing holding me back for seriously thinking about it. (I did hear a roumor of 1.5v fb-dimms from Micron, who knows if that would help and how much...)