<p>DO NOT GET THE TI-84!! Its exactly like TI-83 only extremely user UNfriendly.</p>
<p>Most of my teachers have said a TI-83 has all you'd need for college. So if you want to spend more money, go with the 89. 84 is crap.</p>
<p>ti-89 is better. It has an integrated equation solver which is great for those complex problems that require you to find x in a convoluted equation.</p>