OB:
I'm going to anwswer your question in a way that probably won't help you a bit. . .

I have heard a few digital cables. In my system, I have used PBJ as a digital, the Bolder (non-silver bullet), the Scott Nixon digital cable, and most recently, and Audience AU-24.
IMO, the Audience is the only cable I have heard that actually beat the Nixon cable. It is quite an amazing digital cable that gives me more precise layering, and a more analog sound. It has a broader soundstage, that is also deeper than the Nixon cable.
Don't get me wrong, the Nixon cable beat all others I had in the system. Plus it was about $240 cheaper than the AU24. .
If I were in your boat, knowing what I know now, I would surely look hard at spending a little bit more on the Audience Conductor. They are very close to AU24, except they aren't single crystal. Even John McDonald says they are extremely close to AU24 in sound.
I am sure you can find a dealer willing to go 25+ off on one. That would make it $75 or less. If that doesn't work for you, you may try DIYCable or something, and get a better deal. . .
HTH,
B