A little OT, but If you are DIYing and can re-terminate the speaker end of you cables, then I'll put my two cents in for the Neutrik SpeakOn connectors. Just used them for the first time and love how they go together. Can't comment on comparative apple-to-apples sound.... not about to swap out the connectors and install binding posts... but the amps and cables I just built are sounding very good.
Best part, they only run about $3-4 each (got mine at partsexpress). 4-pole version makes bi-wiring a snap. I also like that the actual mass of the conductive contacts is relatively small compared to many binding posts.