I can highly recommend the Anti-Cables 4.2 Flex speaker cables, best "pre made" speaker cables that I've ever tried.....I use them on my Clayton Shaw Caladan and Buchardt Audio S400 MkII speakers. They come with a 30 money back guarantee policy, and a bunch of vendors use them at audio shows
If you are willing to go down the DIY avenue, you can make some incredible cables with screw on connectors. Neotech, Furutech, Oyaide, or VH Audio; and some WBT or Furutech screw on connectors.