Saltwater aquarium owners!!?

Well this is my first saltwater tank and I have tried to do as much research as I can. I'm purchasing a 125 gallon aquarium that has 100lb of live rock, 100lb of live sand and a few damsels and shrimp in it already. It has metal halide lights, Fx5 filter. Anyway my question is about the fish I plan to gradually add. I want 2 false percula clowns,yellow tang,blue hippo tang, 2 firefish goby, flame angel, lawnmower blenny, green mandarin dragonet, pearly jawfish, pink tip conalactus arrow crab, scarlet hermit, emerald crab, feather duster, blue linckia star, and a purple urchin. I hope to add some coral at some point to. So do these all sound compatible, and any suggestions on what order to add them? What other actual fish can I add? Any other info you think I should know. Thanks, greatly appreciated!