You would definitely want to have great muscular endurance, so I would recommend doing high repetitions with low weight. This wil definitely help with your endurance. Stretching will help too.
The DVDs are instruction manuals in different form. You have to choose the weight training program that is suitable for you and automatically you will get suitable DVD. The factors which you have to consider are your age, sex, health conditions, stamina, and the target.
Usually a gymnast in the Olympics is 100 -119 but there is something called sports anorexia which a lot of gymnast suffer from.
Maestas is a gymnast from Gold Cup. He won nationals. He trained with Olympians at the training center in Calorado.
A 12-year-old gymnast should be around 4'6'' to 4'9''. I'm a gymnast and I'm 4'8''. It is only an average height. I know a level 8 gymnast who is 5'6'', but it is easier to be shorter so you can maintain a good strength to body weight ratio.
The best thing to do is go to your local gym and enquire about weight training programs. If you look in the Yellow Pages you should find a suitable facility near to you.
The best gymnastic training center is asap artistic sports academy plus.
Several of the moves and flips gymnast perform require enough strength to hold their own weight. For example to be able to do a handstand the gymnast has to be strong enough to hold their entire weight on their hands. They also need strength to avoid injury.
Training to be a gymnast entails many hours spent practicing at a gym with coaches who teach you proper technique and gymnastic skills. Gymnasts must stay in shape and stretch well to prevent injury.
Any one can start at any age
5'1 110lbs
The most suitable way of gaining weight is to eat more frequently.
For free weight training I would look in to http://www.sparkpeople.com/resource/fitness_articles.asp?id=1033. It is a very informative article that discusses the benefits of weight training and gives you tips on weight training.