If you want a total change of pace, check out J. It's one of the two main successors to APL, meaning the primitives are arrays and you write programs by composing very general operators. I recommend it for two reasons: 1. it will open your mind and perhaps blow it altogether; 2. the software comes with a bunch of tutorials that are well-done and fun to work through. http://www.jsoftware.com/start.htm
p.s. Don't expect it to be like what you'd normally call a programming language.
p.s. Don't expect it to be like what you'd normally call a programming language.