Well, I believe you are in luck because not only am I in second year Calculus (ego boost again MARTY) but my wife actually happens to be a math professor. That's one part help. Two parts is although you can buy a TI-83 calculator off ebay for very cheap, I would definitely go with the TI-89 if you can afford it. Now you'll have to check because with the TI-89 I don't know if you can use those on the SAT's because they contain a math processing chip that pretty much takes all the thought out of solving the problem.