Please master the simple core exercises before advanced core movements.
http://AskTheTrainer.com/best-core-exercises.html
Maximize your time with the best exercises you can do on the exercise ball of your choice.
http://AskTheTrainer.com/best-exercise-ball.html
You can find exercises for the entire body via body part or different pieces of equipment in the exercise video library.
http://AskTheTrainer.com/exercise-videos.html