MarkW19, believe me if you have the money go as big as you can. The reason I say this is in the end you will be much happier. I only went with a 55gallon, and at this point wish I would of went with atleast 75. This extra $100 will help you get the fish you want.
I have put a lot into the tank I have, and there is still so much to do. This bigger tank will also help keep it more stable, allow for more stock, and also look better due to the simple fact you can keep so much more. Now if you plan on corals in that tank you will need some nice lights. But then again, thats all part of the hobby