If you see my rig in the signature below, I have that, and another pc on 450wh and neither one is ever turned off. I also have 2 laptops, one is an Asus V1JPAK028E, 2.0 GHz, 2Gb RAM, 160Gb HDD, and another laptop which is a Dell Inpsiron 5100, and an Acer TravelMate 2492wlmi. The desktop in my sig below is web server so is running 24/7, other desktop just shut down for holidays, Asus laptop mostly on, Dell on constantly, Acer is bout 12/7. Dell is my portable for school, so it is in very frequent use.