No they dont come with power supplies i recomend this one for running 2 antminers not over clocked!!

http://www.amazon.com/Corsair-Series-80PLUS-Gold-Certified-Supply/dp/B00EB7UIXM/ref=sr_1_1?ie=UTF8&qid=1394733333&sr=8-1&keywords=850+watt+power+supply

Dont buy a cheaper one I have a cheaper 850 watt power supply and it kicks out twice the amount of heat !!!

I'm running 10 off 5x CX750M, no issues.
Swapping them all out to have 3 on 1200W HP Server PSU's though... Can't beat it for $20/1200W

How do you set these up? Saw the interface boards over at gekko science but IDK how to config the board, load balancing, and all that.