I'll third, or fourth, the BFA banana plugs suggestion. They are superior in sound quality and connection to spades and old style bananas as well as bare wire. Well, in my experience at least
Cables for rear surrounds
I've got about a 50' distance to get my surrounds wired up from my receiver. Thinking of using 16 gauge pure copper insulated wire with banana plugs. Should I cut any excess lengths which may be about 10' or so. Or does it really matter?? Any tips other than the obvious in wiring for surrounds?