GE: Home Appliance Energy Use

I find this little flash application in the General Electric of great use to all those who ever wondered how much each appliance used. Not only it tells you in watts the usage, but also it can show you in dollars and the equivalent in petrol, or how much does a kilowatt hour yield for each appliance, in addition to ranking them from the biggest users to the least..

Apparently electric furnaces use the most with a big-sounding 17,211 watts, while things like laptops barely use 30 (printers use around the same). However, I'm curious about how much things use when they are off but they remain plugged. Would it be relative to how much they use when in work?

Also, I see plenty of people who would be interested in seeing all this in the equivalent carbon footprint and all that stuff.