Thank you very much for your comments Brighty and Lighthouse. I ended up buying the Pro 3e. Is it possible to fall in love with equipment? Looks like a perfect fit for me so far. I don't mind having more filter than I need esp. since I can adjust the flow rate (electronically). Also, living in Hawaii where the year-round average temp is 75 degrees I've never found the need for a heater. With lights and other heat emitting fixtures my water temp is around 80 or so.
Mahalo and Aloha
The fooj