I purchased my rock from fosters and smith and was very happy with it. a good amount of coraline on the Fiji and the Carribean rock is nice shelf rock. Lots of places fro my fish and invert to hide. Very nice rock.
That being said, I am planning to add another 50 lbs of rock and will get it from liverocks.com. I didn't know about them when I puchased my original load.