Last night, I watched a video called Kindred Spirits, Healing Your Pets Naturally by Allen M. Schoen, DVM. The video had a lot of useful information for pet owners. The most important thing is to feed them a quality diet, that prevents most health problems. He give instructions about giving your pets a "body scan" that will alert you to problems when they first arise. It is worth watching. I rented it from Netflix.
Dr. Schoen has also written a book by the same name, "Kindred Spirits: Healing Your Pets Naturally".