Desktop Earth Quite a cool little prog. Simulates the earth as it would appear with clouds and city lights etc. Updates too. http://codefromthe70s.org/desktopearth_dl.asp
thats bulshit though, just having a picture on your desktop uses cpu, but it doesn't show on your task manager.
Yes, but hardly enough to trouble an Athlon 3200? I really can't tell a performance difference with it, ands it quite cool