if you go the air conditioned route, you'll have to keep a close eye on the humidity.
edit: and I agree with cold blooded addict, trying to make a name for yourself in this market will be tough. I'm facing the same obstacle, but for me its not solely about the money and its more about the love for the animals and the living art factor that draws me into the world of ball pythons. if you plan on breeding for money, then be prepared for about a 5 year span at least before you see a return on your investment.