Choice - is very important.
Read more. There are many good magazines devoted to physical development, which describes the exercises for the development of different parts of the body. Other magazines are designed for already-trained athletes, they publish articles on how to become a champion. By the way, is now quite good books about the sport, though, and a lot of bad ones. Avoid titles that are thinly disguised advertising of certain products and certain specific persons or hastily concocted pseudo-scientific works such as "How to 20 minutes to reach perfection."
Carefully choose the "health club", where you intend to do. Stay away from offering a "lifetime" membership and those that are more like a disco than a gym. If you need music "disco", better listen to the tape at home with old recordings of Donna Summer. Do not forget that the number of disappointed people, going from "health clubs", equal to the number of patients who leave the hospital diet. Do not become the object of the sad statistics.
Never buy a home training equipment. The matter will inevitably end up that it will gather dust in the corner; these machines are used mainly for filling pockets manufacturers. Really good home exercise equipment is worth a fortune. Once you have mastered certain skills, you can purchase an ergometer, a rowing bench, treadmill, slalom simulator or wall bars.