Meet Buffy, the vampire power slayer

It's taken a while, but computing has finally gotten the green message. Many of the biggest IT vendors now ensure that they are being environmentally friendly in terms of the recyclablity of both components and packaging of the products they sell. But are you doing your bit once you get that kit home and plug it in? Perhaps more to the point, as well as wasting precious energy are you paying more than you need to when it comes to powering your tech?