Be patient and check out Head-Fi.org's for sale page. They show up from time to time. Some one had also recommended Stefan Audio cables. But I have not yet heard them myself. Read before you buy. One of the things people complain about the Zu cable (at least about v 1.0) was that the cable is stiffer than most and you can sound microphonic if you run your fingers up and down the cable. These traits don't bother me as most of the time I am sitting down reading for on computer when I listen to my headphones, not walking around doing things.
FrankC