Meet the Body Blitz from ProForm: a versatile machine that lets you use your own weight to give you an intense workout. It has various leverage points to create multiple resistance levels. The machine lets you perform squats, alternating lunges, deadlift, calf raises, and a whole host of other exercises.
This video shows what you can do with the Body Blitz. You get a workout DVD, exercise chart, and everything you need to get started.