Here's a site that claims to give the inside scoop on what the "hot" books will be for the next several months. Of course, their list is long, they're not taking much of a gamble.
However, for those who want to find a book that might be an IS-producer (please, don't laugh quite so loud!), this might be helpful:
http://www.bookpage.com/0105bp/insid...sider_may.html