Welcome to AA!!!!!
Now that your tank is cycled you can certainly add some of those fish. My suggestion would be to take the damsels back to the LFS
as they will be menaces in the tank after a while.
How big is your tank? The Porc. Puffer will need a minimum of 100 gals to be happy. The yellow tang needs at LEAST 55G. The other two you can get away with in smaller tanks.
Anenomes are very interesting creatures but you need a mature tank (at least 1 yr old) and sufficient lighting for them to survive.
Tell us a little more about your tank and we can help you find some good tankmates!!!