My sister is looking to purchase one and is asking for my help. I know nothing about buying a treadmill. She is 110 lbs and will be using it for walking and light jogging every other day. She is looking to spend under $1000. We checked out a Nordictrack at Sears for $800 and seemed fine but then again I don't know what's good or bad. Any suggestions? Oh, should she purchase a warranty?