Thanks for the links. They have helped a ton. I'm looking at the Mag 7 pump.
Danner Supreme Mag-Drive Aquarium Water Pump/Powerhead - Marine Depot - Marine and Reef Aquarium Super Store
Your calculations were pretty close to what I had calculated for head pressure. I'll probably build my own overflow, assuming I can find someone local that sells acrylic and my wife doesn't shoot me first...lol
