I have a 72 bow also, I started out with a blue chromis(cycle fish, but I will let him live in there as long as he wants). Then a basic clown fish, green spotted puffer, valentini puffer. Had all of those since the summer. My wife finally talked me into getting more fish, my original idea drastically changed. She bought me two fish for my christmas present, I saw a very small volitan that I thought was very cool, so we picked him up, after the explanation that he will fit anything he can in his mouth. So I assumed all risk that the other fish could possible disappear one day. Then we picked up a yellow tang and a bannerfish. My tank is definitely maxed out at this point. If anything happens to outgrow the tank, I'll have no problem finding it a new home.
It all depends what your envisioned plan is. I do have invertebrates in my tank, small hermit crabs that I bought for the puffers, but they have no interest in them. I also have a chocolate chip starfish, which was a great purchase, nobody even messes with it.
My original idea was to have smaller fish, firefish, clowns, chromis, but that idea quickly changed.