Python is a great language to work with. There is sometimes a price to pay in efficiency, but it is a great way to create and learn. It's often rewarding to code in Python, not just because of the results, but some Python programs look just beautiful when you are done (yes, I'm a fanboy, whatever ).

I actually don't have much experience in Python for creating interfaces... I could only advise using GTKmm, one of the best C++ libraries I've ever worked with, but if you don't know either C++ or graphical programming yet, that might take a while, and you really should start playing with either Python or perhaps GTK (C). I believe there are many graphical programs written in Perl, also, you might like to try that too...