The Blue Jeans Cable LC-1 is what I chose because of the same situation. Plain vanilla, but I wanted a shielded cable due to running it very near other interconnects, AC lines and outlets. The cost for 40 foot pair is $110 plus shipping. I placed the amps right next to the speakers and used short speaker cables. It worked for me. If it doesn't suit you, you can return them in 30 days for a full refund. Have fun experimenting!
http://www.bluejeanscable.com/store/audio/index.htm
http://www.bluejeanscable.com/store/audio/index.htm