I figured I'd bump this because knowledge is power. I've purchased three of these inexpensive USB to MIDI cables from this guy and have had nothing but great results:
http://www.ebay.com/itm/230838298743?ss 1497.l2649
I've been able to send clock signals, send MIDI to various pieces of gear and send Sysex data. Just thought I'd help if anyone else is doubting cheap cables.
Thanks for the link, I may buy one