i bought some from jl aquatics and it was great stuff and delivered really quick, i dont' know if this helps you at all but the place is in vancouver, canada.
jlaquatics.com is the website, they have great prices on most things check it out anyway.
I also bought mine from J&L Aquaticks they are local to me they have good prices but you will need to cure and clean this rock as the sell it so fast they do not cure any of their rock. Their Tonga always looks good.
LiveAquaria has cheap rock, but you get what you pay for!!!! i ordered rock from them twice!!! the second time, i refused the rock and they sent me another box..it was all just junk base rock..it looks better now that coralline has grown on it..