I read a few months ago that both Intel and AMD were pushing motherboard manufacturers for 200 Watt capacity.
From what I read about i7s actual consumption vs what is being reported, it could be that the Intel manufacturers listened.
Here is a link to a newer article...
http://www.xbitlabs.com/articles/cpu..._13.html#sect0
Phenom II 955 shows a 110W differnce between idle and load power usage. (Pretty hefty)
The i7 systems show a 130 to 150+ W difference in idle and load usage. The differnce in idle and load usage is actually higher than the rating of the CPU.