I use Audioquest "Biwire Jumpers". They come as high purity copper (PSC) gold or silver plated.
http://www.amazon.com/SET-4-SILVER-BIWIRE-JUMPERS/dp/B0057FK8RS/ref=sr_1_36?ie=UTF8&qid=14568582...
http://www.amazon.com/SET-4-SILVER-BIWIRE-JUMPERS/dp/B0057FK8RS/ref=sr_1_36?ie=UTF8&qid=14568582...