I think you are going to need a bigger tank tim.
I should be ready for a larger tank in a few years after the corals completely grow out. I would like to finish my basement and have a larger glass tank built on site.
My next addition may be somewhat of a huge risk, but I have an opportunity to add a rare gem tang in the next few months to my reef. I am turning into a Zebrasoma fanatic. My black tang is absolutely stunning! Mixing Zebrasoma (black and gem tangs) together in the same reef can be rather unpredictable. I am still one the fence and have a few months to decide before placing the order.
Gem tang picture (from LiveAquaria)