Quote From Caro:

Hi Zak, if you do a search for previous threads there is loads of good interview advice on this forum, I asked for advice for my interview too! But basically just know your stuff, act confident about your subject and relax. If you're self funding it sounds as though interviews are less formal, so it may just be like you having a chat with the supervisor(s) so just make sure you know their work and you have read around your own proposal (I'm guessing you have done this already anyway!).

Good luck I'm sure you'll be fine :)