Just wanted to throw out my humble opinion here. I have been using Maple V5 for about 3 years or so now and I have always liked it. Very easy to use once you learn the syntax.
Then I got a copy of Mathcad Pro 2001 today. This thing is AWSOME! Almost everything I want to do has a hotkey or a tool bar I can pull up. This thing eats laplace and fourier for lunch. and I can input info anywhere on the screen instead of using a command line. Great for lab reports and presentations.
GEEKS UNITE! Mathcad RULEZ DA SKOOL DOODZ!