Give the Mapleshade Double Helix PLUS speaker cables a try. A friend of mine recommended them; I'm a better man for it! While they're somewhat difficult to work with initially due to their construction, once you get them uncoiled (straightened out) and connected, they sound magnificent. I can't imagine a better speaker cable for the money. Mapleshade recommends nude termination (bare wire) on both ends. Also, you get thirty day trial period with full refund if not satisfied. In the short time I've had them, all I can say is that they are incredibly good speaker cables.
http://shop.mapleshadestore.com/Double-Helix-Speaker-Cable-with-PLUS-Upgrade/productinfo/DHELIX-PL/
http://shop.mapleshadestore.com/Double-Helix-Speaker-Cable-with-PLUS-Upgrade/productinfo/DHELIX-PL/