How do you determine how much electricity is used by a device?
Sounds like you could use one of these...

http://www.amazon.com/P3-International-P4460-Electricity-Monitor/dp/B000RGF29Q/ref=sr_1_2?s=hi&amp;ie=UTF8&amp;qid=1294406639&amp;sr=1-2

Then you could take this power saving feaver beyond the computer.