My favorite books on growing fruit are "The Holistic Orchard" and "The
Apple Grower", both are by Michael Phillips and published by Chelsea Green. He's also got an instructional DVD out there, although I haven't seen it yet. There are some free lectures by him on youtube, too. Also, the paper catalog from Raintree Nursery is full of useful information about varieties and pollination charts. Check out their website (raintreenursery.com) to order a free catalog. Good luck!