I had a play around with some of David o'reilly's rigs from his short film 'The External World'. Which I highly recommend watching! After finishing my university degree I decided I wanted to vastly improve my 3D animating ability. So I've been practising with as many different rigs as I've been able to get hold of. So far it's been a lot of fun experimenting and I feel I've come a long way since I first started as my workflow has dramatically increased.