Were you making money with the 727? What kind of profit margin did you have? How much control do you have over the price of your product (are you a charter outfit?)? What is the forecast for passenger loads by the time you expect to take posession of the new aircraft? Are you able to arrange custom financing for a specific jet? Who do you have in mind to do your maintenance, and are they able to do so for the 737NG, 757, A320, MD80, 717? What are the stage lengths for your operation? What kind of turn-around time are you planning on? Are you trying to improve something specific over what you had with the 727 (you will improve almost everything, but is there something specific you need, like the ability to haul loads out of MEX or DEN for 2,000 nm)?