I’d like to buy an elliptical trainer to use at home, so I can work out and yet do work at the same time. (Right now, my main exercise is running about 4 miles when I have a chance, but I find that I don’t do it as often as I should.) I’d prefer one that’s pretty inexpensive, though, because I’m not positive that it will work well for me; I’ve tried ellipticals before, on vacation, and liked them, but I can’t be confident that I’ll keep using such a machine day in and day out. Any recommendations? Thanks!