Learn Python and/or Ruby. Not for the salary bracket it will put you into, but for the horizons it will broaden in terms of how you understand programming.

Don't learn Django or RoR either. You'll just be solving the same problem in a different way. Intead, try something entirely new--write a chat or job server with Twisted, try your hand at image processing, write some ML classifiers, and so forth. It's not as hard or out of reach as you'd think. Imagine a fun problem to solve--something you've always wanted your computer to do (perhaps something that irks you, that you want to automate) and just do it!

You'll find yourself in that "other category" without that having been your objective at all, and you'll have much more to show for it.