Thanks for the help, I'll check that website out!
Leeds College of Music, Hull and BIMM are my main choices. As I've not been offered anything yet I've only got limited information, but so far from what I can find Leeds want me to prepare two pieces. One technical focus and one to show off me. BIMM want one piece to be prepared, again one that isn't necessarily too technical but one that I can really get into. I have been told by a lecturer that I will be asked to show off different techniques, scales and theory aside from the piece(s). I'm guessing I should probably wait to see if anywhere wants me to audition, and until they send further information, it's just that I want to be as prepared as possible.
By the way the courses are all Popular Music if that makes any difference.
Also, at Leeds there is a group section for the audition, where I believe you are put into some form of band to see how you work with others. This doesn't require any preparation, but maybe I'll be tested on charts here? You also get 30 mins of warm up time before the individual section, which seems a lot to me. This could also involve some charts/side Readings?