if ur willing to take a drive (as i see ur in palatine), my lfs in algonquin has cured fiji live rock for $3.99 a pound. the staff there is really knowledgable. the owner knows all of his clients and their tanks. they have tons of coral and fish for less then the average store sells them. also, their display tank is huge and has a japanese dragon moray that is worth big money. (he said $2000 but ive seen them for $1000) its called exotic aquatics, its on randall road by the algonquin commons.
you could also check out beyond the reef or aquarium adventure, near woodfield mall. theyre both a little more expensive but extremely good quality stuff. beyond the reef has a crap load of corals and frags and live rock.