Sorry to interrupt the fight but one thing I consider important is details on power supply required so that upon delivery we can all have one ready to go.
Time is going to be crucial especially in the first month with diff increases etc. , you don't want to lose time hashing waiting for an item like that do you?
Personally I'd like to be shopping for mine now and be sure it's the right one.
They've said only not to rush out and buy a 1000 watt PSU "you won't need anything that big."
I think 1kw was their worst-case-scenario + room for error figure. I think they're shooting for ~750.