I just moved everything from 20 gallon to my 55 gallon tank

For livestock I for now have a Pink Spotted Puffer and a Blue Head Wrasse. I have a couple of Stony Corals. I only have 10 lbs of live rock in the system, but I like the way the big open space looks (and at the LFS its $10 a lb).
My next fish i'm thinking are some sort of Dwarf Angel, 2 Firefish, and a couple of gobies later on when the tank gets more established.
Any thoughts or suggestions on the livestock?