I have to agree with Mony here -- if you can't make it to a gym then just buy some dumbbells/weights.
With exercise machines, you really get what you pay for -- spend a lot, get something great -- spend a little, get something suitable for hanging your clothes on(I know someone who uses the HealthRider [remember those?] that she paid $350 for as a towel valet in her bathroom).
Personally I'd stay away from most of the stuff you see sold on those TV shopping networks, unless you get a 30-day guarantee (of course, shipping a big piece of equipment back is a real hassle!).
One of the advantages about going to a gym is that they have the bucks to buy and maintain those big stairclimbers, EFX's, treadmills, etc that we all love (right?).
If you don't have time or feel comfy in a gym you might check the exercise equipment stores in your area -- some of them might actually lease exercise equipment (plus you can try before you buy). Or if you have a bike, invest in a trainer (Blackburn or CycleOps are both good ones). They can be a little on the noisy side but you can get a great workout on them!
MrsJim
265/159/145