Count me in for one or two, If only for the sake of decentralization.
Edit : If this thing is to consume 600w, I think we can save almost 80$ for PSU + shipping. I'd guess, like many miners, I won't have much use for these 80+ Gold PSUs
I really think that 600W number was a wild guess. It will be a lot less.
I trust ngzhang to make good technical choices.