Alternative to running for cardio?

Kickboxer

I also hate running, but when the weather is nice it's the only exercise the wife will do with me.

When it's cold, I end up by myself at the YMCA.  I prefer sprints on the track, but to allow me to watch Athol's video series I used an elliptical machine. 

So you just need to find something that keeps you motivated to workout.  Watching a video series, changing up equipment, or changing the basic exercise (run vs. stairs vs. elliptical) may help you stay with the exercise program. 

Lenny

I would highly recommend getting some coaching on the swings. I did when I started and it made the world of difference. Easy exercise to get wrong.