It looks like pretty much all the TI calculators available are allowed on standardized tests. I can't really imagine getting through college calc/higher level math/physics with a spreadsheet... although I use them a lot for work and personal things, you certainly can't use them in an exam, for example. M&M's mom, I spent some time comparing options on the TI website. Am thinking the TI-89 might be the way to go at this point. This business of the rechargable battery with the nSpire sounds like a hassle.
