I found this very cool, I found it over at LifeHacker.com. Some people did a lot of studies on Plasma Screen Tv's, and Game Consoles.
"Our tests found that leaving a Playstation 3 on while not in use would cost almost... five times more than it would take to run a refrigerator for the same yearly period".Now thinking I have put easily 500 hours of game play on my PS3 since December 23, 2007, thats a crazy amount of electricity used."The plasma TV set was also a power hungry device, consuming over four times more power than a traditional analogue set. The average desktop computer was third on the list."