I used to run regularly until I was diagnosed with psoriatic arthritis, which made running too hard on my knees. I really missed the feeling of running through trees, etc., but I couldn't ever run enough to get into good enough conditioning to make running fun.

Then we got this elliptical trainer. SO EXPENSIVE, BUT TOTALLY WORTH IT! We were able to use our "flexible health care" tax free account to buy it after having a doc write that it was essential to my health to have a cardio workout that didn't affect my joints. I started using it every day after that, LOVE being able to get a good workout...