I agree, although I would argue for making JavaScript your primary language for web development, especially in light of (a) the possibility that has emerged in

I agree, although I would argue for making JavaScript your primary language for web development, especially in light of (a) the possibility that has emerged in the past few years of running JavaScript on the front and back end (I'm referring of course to Node.js), and (b) the movement toward doing and more and more on the front end with far more selective recourse to the back end (here I'm referring to libraries like Backbone, Ember, etc.). PHP and Python are both very cool and have amazing communities, but get as comfortable as possible with JS first.