Your Shape (Includes Motion-Tracking Camera) delivered for £9.99 at Play.com.
I know its cheaper if you have the code for Currys but that expired yesterday and not everyone has a currys/pcworld nearby.
Unique camera tracking technology that scans you body and gives you real-time feedback on your movements
Shape Selector: work out one specific part of your body based on your personal fitness goal
Tutorials: access to the tutorial section where you will be able to watch a model demonstrate exactly how a move is done correctly
Training sessions with almost 500 unique exercises featuring Yoga, Cardio fitness, Strength Training, Flexibility, and Weight Loss Routine