Timmy,
I'm guessing that since you didn't have previous knowledge of Speakons that your current gear doesn't have them. In that case, I recommend you get the "fat" 1/4" plugs sold by Parts Express or elsewhere, get some 14/2 SJ wire from Home Depot/Lowe's or anywhere else that sells electrical wire, and solder them up yourself (or find a buddy to do it for you).
As for Speakons having four poles instead of two - you don't have to use all four poles. They are labeled internally as +1, -1, +2, and -2. All musical gear that I am aware of uses the +1 and -1 terminals (excepting the odd case of bridged power amps which I won't get into here). Neutrik does make a two-pole Speakon but they are highly unpopular.
-- Dan --