Exercise Equipment

I have an old DP Fitness for Life Air strings. I call it a bike to get up because you do not fit. On it, move my feet around in a pedal motion. For my arms, I agree with two handles (handles) from side to side to go and get my arms in the same motion I do if I ran would do. It all seems akin to driving without the power you would get on the floor. I liked this machine, but this is now exhausted. What do they call this type of fitness equipment today? Where can I get a good deal, refurbished factory? Thanks! elyptical an elliptical