I dont have the power meter on me right now, can anyone give me a power usage of 280x (can be full pc) hashing at around 515Mhash/s with smelters?
A lot, actually - 1 computer w/ 1 280x card burns 260W
(I think my cpu burns around 70W)

I was getting a feeling it might be close to scrypt powers. I guess a 0.9 x scrypt multiplier would be realistic.
Thank you so much for the fast response!