I purchased some balanced and a pair of un-balanced audio cables from Blue Jeans Cable and I am impressed in how well they are made. In the future all my cables will come from them. They make them to order so you can get the length you need. I ordered mine on a weekend and they shipped out on that Monday. Here is a link to some very interesting articles they have on their web site.

http://www.bluejeanscable.com/articles/index.htm