I have a step at home and use it while I am watching TV...that might an option if you can't afford the gym or enjoy working out at home for whatever reason. I do step workouts for free on Exercise TV (if you have Time Warner, it's awesome! Lots of star trainers, you do their exercise DVDS free pretty much). I also bought a couple step workouts, learned lots of moves, and now I step myself while watching TV. It can be a very vigorous workout, or it can be less intense...it depends on your moves, how much you jump, etc. Just like floor aerobics, you get out of it what you put into it.
Definitely start with a beginner class or a beginner DVD, or just stepping around on it yourself for awhile. It is an awesome workout for the legs, and I just love it!
August 25: 245 (Mini Goals: 283, 277, 271, 264, 258, 251, 245)
October 31: 199
November 27: 180
January 1: 165
February 15: 150