Amazon has the Bosu 3D System Balance Trainer for $90 with free shipping.
Product Features:
* Balance training system for strengthening and coordinating core muscle groups
* Ideal for performing lunges, curls, shoulder raises, hip extensions, flies, and more
* Includes balance bar and adjustable resistance tubing for workout flexibility
* Boosts performance across wide range of activities, including sports and recreation
* Comes with Total Body Blast workout DVD
Amazon.com: Bosu 3D System Balance Trainer: Sports & Outdoors
Bosu 3D System Balance Trainer w/ Total Body Blast Workout DVD $90 + FS 
