My YMCA added some new ellipticals about a year ago. I keep forgetting the brand name and model since I don't use them. The look like normal ellipticals, but seem much smoother or more "natural". They also have the ability to adjust the angle on the downstroke to inside or outside (I don't know how to explain it -- if you skate, and push off to one side or the other, you are pushing to the outside. These ellipticals can adjust that angle of pushoff.)
My knees and hips are shot, so I skip the machines and hit the lap pool.