bianco: Yeah I got it from PPCs, tagged along with other stuff in an order. I'm sure it's available locally, but the laziness is entirely my fault.

PCI-E is 18awg. ATX 24pin and 8pin are 16awg. Fan wiring is 22awg, and power-reset switches are wired with 24awg (not yet installed). Pump wiring is also 22awg, I figure if it comes with that stock then it shouldn't be a problem.