But what speed is that at? 19.5w is with the chip overclocked to 3.65Ghz, ram overclocked and overvolted to get to 2100mhz, and fsb up to 130Mhz I'm pretty sure if I ran at stock with a drasic undervolted on the cpu, ram, gfx and mobo it would come right down. No doubt Sandy Bridge is power effecien...

As the guy that built it ;-) I would say that 19.5w is very impressive, show me something as powerful which can idle at less? I have Celeron SU2300 1.2 CULV (actually uses less watts at idle than an atom) running at stock speed coupled with ION running on a pico psu and that can't even match the idl...