How about (yet another) something for the environment? This popped up in my The Register RSS feed so I decided to have a peek. The app is supposed to give you a better control over the power saving features of your PC than XP does (not so sure myself!) but it does give you a nifty a meter showing how many trees etc. you've saved!
I've installed it and it seems to work pretty flawlessly & you can even join power saving teams a la SETI. Full Register article can be found here:http://www.reghardware.co.uk/2006/11/30/pc_cooling_app/http://www.reghardware.co.uk/2006/11/30/pc_cooling_app/