http://www.infomercialshopping.com/gazelle.html

Well, looks like you can pick this one up for under $200. My little sister uses it often and she seems to like it ok. Looks like it's good for cardio. The arms and legs moving at the same time will add to the workout and burn more calories. Definately more interesting than your run of the mill treadmills... cheaper too. I'd say if you're stuck in the house 1/2 the time and getting bored, get one. This way you'll get some exercise while watching Oprah. :P