I'm second year at the London College of Communication (Used to be better known as the London College of Printing as someone else mentioned). It's the same group as St Martins (University of the Arts London).
St Martins is good if you want to do more out there conceptual stuff but the LCC straight Graphic Design course is seriously fantastic. It's not easy to get in to (or to stay in if you don't work) but the facilities are fantastic and ****, there are books about the work of both my current tutors and they all work professionally as well as writing for publications like Eye. After second year you can specialise in Typography, Advertising, Illustration or Information design so you can really go in the direction you want as far as you want which is great. IIRC we have the highest level of grads working in industry after 6 months of any graphic design course in the country.