TI-89 Graphing Calculator

I'm obsessed.

I had a "TI-89 lesson" yesterday (i.e. local high school student spent an hour trying to teach me) -- and have been in it's grip ever since.

I can see that if I can figure out how to work it, this could increase my math score enormously; the calculator actually SOLVES the algebra equations. (Honestly, I'm surprised the College Board allows it.)

Given that speed and sloppy math errors are my two biggest issues with the SAT Math section, this could be a major breakthrough for me......

The problem is that it's way more complicated than you would think;  I feel like I'm learning a whole other language, and the question is, can I become proficient enough to benefit before the next SAT, which takes place on May 12 -- or is it going to be a distraction and a burden?

I have a question: I saw that there is special TI-89 SAT Software available for download.  Does anyone know if it's worth my adding that to this already complicated calculator?

Most of the comments on College Confidential say to stick with the TI 84, by the way -- but I think I'm going to defy the advice and take my chances with the 89. (I feel like I'm overruling the navigation lady in the car, which is never a good idea.)

Illustrations by Jennifer Orkin Lewis