well, im in the process of setting up a 90 g reef tank with 20 g sump/fuge, live sand, 1 250W halide with 2 PC's. it will have lots of sps in the middle, lots of softies on the sides, and it is going to have a fairly large clam bed... :D
anyways, my dream tank would be 10 feet tall, by 20 feet...