Read this article:
http://home.earthlink.net/~rogerr7/wire.htm
The author's home page is here:
http://www.roger-russell.com/
He is a retired OEM engineer for McIntosh Sound Labs and has some very interesting thoughts on expensive, largely unneeded, "monster" type speaker cables.
Those of you who believe they can hear a difference are doing so purely subliminally.
Victims of 'keeping up with the jones' and manufactured hype for over priced products which deliver nothing.
Oh, and unless your an Engineer from McIntosh or another HIGH END audiophile applicance manufacturer, I will continue to side with Roger on this one.
-bear