I personally really don't like OHCM. It's too basic, too cramped, the images are too stark, and I hate the format and even the paper quality of the Oxford Handbooks.
Kumar and Clark's handbook is good for clinical medicine, but neither of those books really comprehensively covers the anatomy, pharmacology and physiology you'll be expected to have retained (and develop!) in the clinical years. I therefore recommend specialty texts from your hospital library. The Lecture Notes series is OK, but the eureka series is truly stellar.