There are a ton of options, but I would caution you to avoid spending too much. Buy some good cable at a reasonable price and spend the rest of your money on other aspects of your system. Cables are an expensive way to tune your system - better to buy components that are well matched to begin with. As for specific cable, Linn K400 is great for biwiring or biamping, and a wonderful value as well. It is fairly massive in appearance when you first see it, but it will actually disappear along the floor boards where you lay it (really).