bcpokey, people don't have the luxury of building 1.73Mhash/$1 systems anymore. It can't be done.
My most efficient build was right up there, yay for the microcenter markdown bin. 600mhash for $344
Anyway, would the big bang marshal be capable of supporting all 8 of these? The main reason I'm so attracted to making an 8-GPU system is because is because repurposing it is an easy way to drive a 12-16 monitor video wall without messing with (the highly buggy) xdmx.
Also WTF two 1200W psus!? I thought one would do fine!