I need to wire my room for speakers, I have energy c5's in the front and a denon amp, so just midgrade stuff. The runs will be about 15-20 feet at the most through the walls and cieling. I'm going to be real careful not to get them too close to electrical wires. The question is, what cable should I use? I was thinking just getting 12 gauge speaker wire from home depot, rather then paying 5 times as much for monster cable, any reason why I shouldn't?