My first choice would be HiDiamond Digital Carbon, close but not exactly in your price range. Best digital cable I've personally heard and an absolute bargain.
Second, if you need to go with a cable that already has a long standing reputation I would buy my Marigo Apparition 5.8 (RCA) from me for $300. If you're interested let me know and I'll list it. It is however not particularly flexible, but it bends and holds its shape easily and well. I wouldn't normally hawk my own stuff but the cable's rep speaks for itself and I'm selling it for a bargain price.
Second, if you need to go with a cable that already has a long standing reputation I would buy my Marigo Apparition 5.8 (RCA) from me for $300. If you're interested let me know and I'll list it. It is however not particularly flexible, but it bends and holds its shape easily and well. I wouldn't normally hawk my own stuff but the cable's rep speaks for itself and I'm selling it for a bargain price.