Are you after a commercial product? I (Matt) would personally lean towards purchasing Vision Fitness cardio equipment, as seen on Celebrity Fit Club. With Vision you'll still get very good quality, but receive longer warranty's and at a fraction of the price of most commercial products. Vision offer an extremely reliable full commercial treadmill at half the price of Life Fitness' entry level commercial treadmill. Visions cross trainers and bikes are also very well priced.