Thanks for your insightful thread organofcorti. It leaves me curious, though.. I have some bASIC devices incoming and your estimates are much higher than I was expecting. Is it not safe to say that the 54gh/s units will top at around 200w? Also, what kind of power connector will be required? others have speculated it will run on standard 6-pin pci-e connector, but wouldn't 8-pin be necessary if they really draw this much juice?
This is what I based my last post on:

It's lower than 200W. Maybe you were looking at earlier posts?
As far as the rest, I don't know. I play with numbers, then get other people to explain to me how to deal with the hardware
Edit: I'd forgotten to link to the lastest post in the OP. Sorry about that.