For barrel power supply connectors, I just ordered a 10pack of these:

• http://www.amazon.com/gp/product/B0058RLD9C/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1

Then I read that 18 gauge wire is the best bet for this, so I just picked up a spool of speaker wire with the positive lead striped red:

• http://www.amazon.com/gp/product/B003ZX8NX0/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1

I wired them all together, and I'm hoping they'll work. I should be getting my miners from Zoomhash on Monday, so I'll let you all know how it goes.

-gudmunsn