Depends how much room you have, and how much money you want to spend.

The only cardio machine in our house - the trainer for the bike, and the stairs

We also have a pretty good universal style gym, a variety of freeweights, several exercise balls, exercise tubing, the cheapest of all possible wobble boards, a skip rope (our ceilings are too low to use it inside, though), free weights from 5 - 30 pounds, and the latest item, an Everlast 75 pound heavy bag that DH had to mount with a pully and hitch system since we don't have the room for it to stay up all the time.

There's so much variety in the things you can do.

Han-grrl says it best though. You have to do the workout you love. What do you like using the best?? If the elliptical is fun for you (it must be, you burned it out already!!), better replace it!

Good luck making your choice! And let us know how it goes,

~T~