I have mentioned this before, but I notice that a lot of questions are coming up about cardio exercise equipment again. I happen to love the elliptical cross trainer, but for those of you who are just looking to sweat until it stinks at a low cost, go to ebay and check out the Nordic Track ski machines. You can get one in as good as new condition for about $150. They last for many many years, and nothing breaks on them. My wife has been using one now for 14 years and she is in perfect condition (no, she is not looking over my shoulder while I am inputing this.) The movement is very smooth, and they are fairly quiet. The are also easy to move, and they fold up. They do not take a lot of room (fairly small footprint).