Speaking of power supplies, been looking around at some for my rig when it comes. One thing I noticed is that many 1500w supplies have 2 different ratings depending on the voltage feeding it. Especially server PSU's.
As in rated 1500w only with 180-240vac feeding it, 950w with 100-129vac in. Just sayin' - pay attention to that possibility and double check the specs.
All of my power supplies are now Enermax Platimax or Enermax MaxRevo's. I got tired of waking up in the morning and seeing that a power supply failed and my miner didn't mine all night. Learn from me. Just get quality power supplies from the start.