Basic introduction to Theano - making an Autoencoder

I recently decided to teach myself about theano.

I thought that it might be useful for people trying to do the same to read about my experience with it: http://triangleinequality.wordpress.com/2014/08/12/theano-autoencoders-and-mnist/

There are many excellent tutorials already online, but sometimes I find it useful to hear from a beginner.