I gather they run this promotional deal on their ebay store all the time for different IC's and other cables they have. I've read good and poor reviews on the Oxyfuel, but it's up to the ole ears in the end.

Most of the guys over at the headphone forums dislike them, but I think 99% of the reason is these are suppossed to be pretty stiff cables and the RCS connetors fit real tight. Not too conducive to plugging/unplugging all the time or hooking up to a lightweight headamp. But I think in a system where once plugged in to heavy equipment and staying there it won't be a problem.