This species is called Pomacanthus imperator, or the Emperor angelfish. The one I got is about 10 inches long. He's already eating from my fingers, and he makes grunting noises when he comes to the top of the tank for food! He is absolutely beautiful.
<img src="http://www.laups.org/photolib/photos/bkylfish.jpg">
<img src="http://www.laups.org/photolib/photos/bkylfish.jpg">