Zip ties work pretty well, and since they're cheap you can pretty much add one every few inches along a bundle of cables keeping them neat and tidy; though I do plan on only having that as a temporary solution until my cousin brings his dremel over. Hehehe, my air flow is OK in my Antec900, but thanks to being stupid and not buying a modular PSU I have what looks like a snake pit in one of the drive bays with spare cables.
