I was in my home town last week (Longueuil,Quebec) and I found a company, Solen (
http://www.solen.ca/), who sell a\v cable, speaker cable, banana plug and tons of speaker parts of excellent quality at very good price. Like I got 70 feets of 12 gauge speaker cables and 13 paires of good quality(not the cramp one but the reusable), gold pate banana plug, both for less than $100 buck !
I don't know in the U.S. but from here in Kingston, Ont. we "might" find cheap bananna plug for $15 a paire,
and we have to search around to find any 12 gauge speaker cable under $1/per feet.
