James McGaugh, Director of the Center for Neurobiology of Learning and Memory at the University of California in Irvine, has written a new book about memory and emotion. I haven't read it yet (it doesn't come out till October according to Amazon - although they also say it's available within 24 hours, so who knows), but he's got a few professors to say nice things on the back of the book. There's also a review in the Guardian. The consensus seems to be that it's very readable.