Nihil- So what about standby mode? They are still pulling power.. Now you may say, but I hit the button to turn everything off.. That doesn't mean it is not in standby. Do you unplug your microwave, vcr, DVD, cable box, TV, etc... from the wall after everytime you use them? if not, they are powered on and have juice running through the power supply...

My power supply stays powered on in my computer unless I physically unplug it or flip a small switch on the back of the power supply.. So technically, even though the computer is turned off it is still pulling juice and could still have a fire threat.. So if that threat really worries you, you should make sure that none of your consumer devices run in standby mode.