I have to recommend my friends down the road at Hamilton Marine in Searsport, Maine (they're on the web and several other stores in Maine as well). Great, friendly folks and excellent prices - they usually match or beat Defender, and ALWAYS beat "Worst Marine" prices!
GenuineDealz is great too - high quality marine electrical cable, wire, fittings, etc. AND they will crimp heavy cable end fittings for $1 a pop labor. Oh, yes - and FREE shipping! Unless you have a wholesale account someplace, NOBODY, but nobody can beat their prices!
Let's keep this thread going - we're soooo quick to b**ch, but some vendors really deserve a pat on the back and some free advertizing!