I'll add my numbers from a range test on June 9, 2012:
27.1 kWh Dead to 100 from the wall (Kill-a-Watt meter, 120V, 19 hours, ~85F, 6 temp bars) 6/9/12
Details:
2012 Leaf, 7700 miles, seven months old. Car charged the night before to 100%, and left plugged in for another four hours after...