Need help - Workout Machine

Let me pick your brains for a moment. In college, we used a machine that really helped me with my arm strength and with my cardio work out as well. I cannot remember the name of it. Perhaps one of you can, I'm going to describe it as best I can. It's long, at least six feet, with a movable rest on the top. you lay on it (you can be on your back but mostly on your stomach) and reach forward for 2 straps, one on each side. you put your hand around the strap, which looks like a swimming paddle. then you pull, fly or freestyle, while the machine can be set to record how far you've pulled and how much/little resistance. does anyone know what i'm talking about?? :dunno: thanks! i'd love to find one near here...