Ocean Pro Aquatics in Chino is pretty damn cheap. The fiji had some pretty good corraline coverage, and the marshall islands had some decent shape and some nice clam shells. I know they're not really setup for walk-ins, but the vats are pretty filthy, and they'll arbitrarily label something 'show' to grab an extra $/lb from time to time. Still, I'd go back if I was trying to grab some more rock for cheap ...