My background
What to expect on a Computer Science course
Can be quite practical depending on the university you go to. Typically 15-30% of the grade will be from coursework.
Usually have significant group and individual projects where you build something. These can be quite academic in nature or can be very practical.
Application advice
A* in Maths A-level. As in other subjects.
Presentation is online at http://pub.geekonabicycle.co.uk/habs-cs/