Joe get a book called "Eat this ...not That". There are several versions of the book. One is "eat this ...not That" for Grocery shopping, one for restaurants, and another one for kids. They are great books that tell you obviously what to eat and what not to eat. The books read more like a reference book than a book that you read from cover to cover. There is also a very informative section on eating organic food.
Kim has already written an article on what to eat on race day. Check it out here
as well as the rest of the articles in the nutrition section. Thanks and see you at the gym!