"2. with the price of gas in the Bahamas ....more money for beer and bait"
Now were talking good, sound reasoning!!!!
I've got a 144 gallon on mine, however I do like the idea of a larger tank forward and a second smaller spare tank aft. Fill the back tank only when you need it. That being said, if I was upgrading to a nice 250 eTec, I would probably double my mileage/range and not need as large a tank.