Do you have a mac pro and an wattage meter? There isn't much info on the net about max power usage. You could help and bring some insight to the people in power efficiency of the MP. See what is the greenest / powerful apple -Can you post the wattage of your Mac Pro in idle and max in full performance state (using geekbench), type, cores, GFX card. Only one standard HD. Without other hardware connected. Without the power your display uses. -Also the wattage of the Cinema Display's, type, without any other hardware connected to it (no recharging MBP) would be nice to know.