I use the Axiom speaker wire... it's out in the open for parts of the runs and wasn't any more expensive than the 12ga I was buying here.

I have to admit, it's "like buttah"... soft and pliable, sits perfectly flat. No different sounding, but easy to work with and looks sharp.

My interconnects and stuff are all hidden (er, will eventually be hidden when I rerun them all) in the cable keeper on the AV stand, so those are off-the-shelf industrial cables with wire strain relief.

Bren R.