Make sure you have after effects and mess around with it. That is a major tool for both animators and vfx artists. It is one of the best adobe products. Specialization is neat but dangerous, sometimes post production teams might want someone who knows a little bit of a lot rather than a lot of a little. I would say check out online tutorials see if you cant get a greenscreen to play with, take a lighting class if they offer it, that sometimes uses greenscreens, also and type of film class, they may give you access to a greenscreen and help you with editing. I do apologize I dont know how the schools across the pond work but those are just some things I have picked up on, I am a Senior Animation Student about a quarter away from gradutating so that is where my experience comees from.
Also see if they offer Master Classes, one of the most influencial classes I attended was a Pixar Masterclass. They can get expensive but they are worth it and definately fluff your resume up. Also try for internships they will teach you more specialized skills.
If you are playing with after effects try this website. It is fun and lets you experiment with the tools http://ae.tutsplus.com/
Also Lynda.com is a great resource for learning a new program
A Cartoonist is just a lazy Animator.