On my end, I've just recently dealt with Pexon. Very fast replies to any questions I have and prices seem reasonable. Depending on where your're located, you can't go wrong with either Zeal or pexon. Both are highly recommended.
This is what I ordered.
http://pexonpcs.co.uk/products/filco-keyboard-mods > this is the quick disconnect, connectors are one for the PCB and the other end is a female USB A
http://pexonpcs.co.uk/products/usb-cables > this has both ends with a USB A male connectors that connect from the modded cable to the pc.
He also sells coiled cables. Really there are many options to choose from. If you have any questions, just pm pexon. He usually replies in a day or two