The Big 5: Books on Preaching

DriscollList 5 books you would recommend on preaching?  Think of a seminary student or newbie...what would help him?  Think of a seasoned preacher...what would spice things up after years of the same process?   Please no books of preaching or transcribed sermons.  This should be a list of books on the art and science of preaching, on the preparation and delivery of sermons.  In this post I'm thinking of preaching as the weekly public proclamation to a local church and visitors. I'm going to let you make your suggestions first before I give my list.