Nothing! All you need is the green book, the yellow book, the past papers book and maybe consultation.
Oh the resource centre was great for the two years I did maths. Try it out. You go sit there and if you come across a stumbilng block you can just ask the "tutor" who is there. They are not always helpful so go there with a Mathematical problem don't expect them to help you with your laplace or D-operators but they can help with the maths.