The PCI-e cables can also be used.
That was my original plan but Fry's didnt have ANY PCIe extension cables. I wonder how that place stays afloat sometimes. I cant tell you how many times I've been there looking for something fairly common only to not find it. Ugh...
I ended up using the 4 pin drive connectors and the miners all seem to be fine. I'm sure they will be even better in single mode when I get my controller.
Speaking of the controller, anyone know where I can buy JUST the controller in case the supplier doesnt come through?