heres a little thing I like to do. I group similar cables together. Thus, molex and sata are tied behind the hard drive cages. satas are UNTIED, but group together (since people tend to change those out often). internal usb, spdif, firewire, and audio cables are tied together, and I tie the cables along the edges of the case. Get plenty of cable ties and don't be afraid to experiment. Embarrassingly enough, I use fingernail clippers to cut off the cable ties at the end because you can apply a lot of force there and they get pretty close to the ends.