Yeah, I'm using this wattage reader or whatever it's called... Normal consumption for the PC is around 70-90 W, and folding on CPU with SMP client (all four cores @ 100%) makes it go up to about 120W, which is not a bad increase. I haven't checked what kind of numbers I get during gaming, nor have I tried a GPU client yet, because I am a bit concerned that the constant use of the GPU might shorten its lifespan considerably.