I am thinking about buying an elliptical machine for home. I use one all the time at the gym, but know I'd use one more often if it was available at all hours. Lots are available online, but not too many for me to try in stores. Do any of you have one you'd recommend? I can't afford the quality they have at the gym (about $3,000) but am willing to put some money towards it. I'm looking for something durable with smooth strides. It doesn't need to have all the "bells & whistles".