It is good to learn more programming languages, it will make you a make you a better programmer.
Right now I'm programming in haXe, Flash, Ruby, and C++, and I am learning Lisp by watching the Structure and Interpretation of Computer Programs and getting into a bit of Python. I'm also reading The Art of Computer Programming by Knuth, with his machine language analogue called MIX. Each one is teaching me something different about coding.
