Casio- a little harder to use, but decent, and a lot cheaper.
TI- pretty easy to use, and taught in schools because they give a free one to the school for every(one)a student attending there buys, but much more expensive.
HP- real good, but VERY expensive.
so does anyone have suggestions/reviews of theirs?
oh, and if i spend a lot, i will use it in college too, if not, i can just buy a better one when the time comes