JAMA isn't much fun to just sit down and read. NEJM is slightly better for the average med student because the clinical "detective" cases are sort of interesting to go through--although typically they are total zebras and nobody has a goddamn idea what the hell is going on until the pathologist says that he saw purple vibrating Bonker-Ski-Bigkok cells on the toe biopsy.
The latest issue of JAMA has a good review article on management of NSTEMI which, if you're on your medicine rotation like I am, you may be getting pimped on.