I LOVE my rock that I got from saltwaterfish.com. Was dried out, but was live and some algae and critters came out of it that I was happy about...some that I wasn't.
If you don't want to go the true live rock route, bulkreefsupply.com and get some of their dry/base rock. People here have been very successful with this stuff. I'd make sure to soak it for a couple days in ro
to get any possible phosphates to leach out of it/dust off.