strindl,
I know a lot of people love Blue Jeans Cable http://www.bluejeanscable.com/ and Signal Cable http://signalcable.com/ around here. I own both. Signal makes reference-quality cabling at mere-mortal prices. Blue Jeans Cable makes audiophile-grade cabling at or below what you'll pay for shiny, mediocre Monster cable.

Signal is really small-time, and kinda slow. They don't have a fancy shopping cart site or anything, but they make terrific cables. Blue Jeans take a practical approach to cabling. Mine arrived a little grubby (on the outside), and in a plain plastic bag, but perform wonderfully.