Welcome to BP.net! You'll me a LOT of great people on here that are more than willing to help you out with anything you need! A few things I would say:

1) Wait a little longer and be 100% positive you're ready and willing to make a comitment to the
responsibilities of a ball python.
2) I've found its much easier to maintain correct husbandry using a tub than a tank. Theres a
few sticky threads in the ball python husbandry you may want to check out!
3) If you get one, you'll get two, if you get two you'll get three.....etc etc. lol