Biochem is taught quite well at Warwick although I am obviously biased! The degree itself is quite challenging and I would say it is the hardest degree offered by the life sciences department. Biochemistry is far more demanding than say straight biology and thus it is popular amongst employers. It is worth stressing that the job market is a bit up in the air ATM so if you want a career in science research you would have to undertake a phd. Warwick is part of the Russell group and as it is one of then top 5 universities in your country so if you came your future prospects would be promising. The staff are really friendly and quite a few know me on a first name basis (rare thing at unis)