I got mine at Sports Authority, cost like $500 and it was last years model so I got like $400 off. Springs, fans pretty blue lights, looks great with my wife's clothes hanging off of it in the corner of the bedroom.
Ive been looking around myself. Walmart and kmart have some decent ones between 250-400 bucks. I need to get one soon because going to the gym just to do cardio is becoming a pain in the ass.