At the undergrad school I attended, they used Mathematica. I found a copy of the student edition selling for $20 in the book store, so I bought, upgraded to 4.2 for $40 and was a happy math student. The grad school I'm starting at next week uses Maple. I can get the student version for $112 through the campus computer store. Now I've never used Maple, so I was wondering if it was better, or even all that different. I already have a good math program, so I really don't want to invest in another one. Any comments/advice?