I would get two books. First, http://www.amazon.com/Birth-Backing-Complete-Handling-Young/dp/0715312847/ref=sr_1_1?ie=UTF8&s=books&qid=1241463575&sr=1-1. It's a good training book on everything from imprinting to your first rides.
Next, get http://www.amazon.com/Blessed-Foals-Howell-reference-books/dp/0876052863/ref=sr_1_1?ie=UTF8&s=books&qid=1241463584&sr=1-1. This is a good training/handling/nutrition book.
Both are great books and definite "Must Haves" for foal or young horse owners.
I would work on touching all parts of the baby, including picking up feet, touching inside ears, and inside mouth. I would get a leather foal halter and get that on him. Work on leading him and momma around. Take the halter off when you're not working with him.
Keep your vet on speed dial and just have fun!