I have read alot of articles on the internet about how much power your computer uses when your not using it and it is either; in sleep, turned off or left on. None of the articles i read were really that conclusive, so i wondered if you guys know whats best to do when not using it for 8 hours or so. I usually put it in sleep mode or just leave it on because i always assumed that turning it on and off every night would wear it out a bit. cheers.