Check these threads out. They will give you an idea of what you need. They will also give you an idea of how you can keep your Ball Python. Each way has it's own advantage and disadvantage.
Glass Tank - http://ball-pythons.net/forums/showt...-With-Pictures!
Tub - http://ball-pythons.net/forums/showt...e-Basics-*DUW*
PVC Enclosure - http://ball-pythons.net/forums/showt...-With-Pictures!