The University of Oxford is running a brand new summer school which is open to UK state school students currently in the lower sixth form.  Successful applicants to the UNIQ summer school will enjoy a week in Oxford this July, living in one of the Oxford colleges and studying their chosen subject.  500 places are available to bright, motivated and enthusiastic students who would like the chance to see what studying and living in Oxford is really like.  See http://www.ox.ac.uk/uniq for full details.  There's an online brochure which tells you all about the summer school and the application process.