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?

suncore
Agree completely with reubent's comment about BFA connectors. I've put together quite a few speaker cable pairs for myself and others and the various brands of BFA connectors I've used have been the easiest to work with, the easiest to use and the most reliable. 
DH Labs has a "Z Plug" Banana that is affordably priced compared to Nordost and others.  I have the silver version, and they are very easy to use DIY.  Their Odyssey 14 awg cable would also be good choice for long-run rear channels.  I think it is made in USA as well.
sincere - I would go with Kimber Kwik 12 speaker cable.  IT is good copper, inexpensive, easy to pull, big enough gauge and sounds great!  Good Luck