> To me, all exercise seems like punishment. I've
> never found a way to shake that attitude.
Don't find an 'exercise' that you like then. Search for a sport or something FUN!
I don't like jogging, though it's great exercise, but I love to play ultimate frisbee and volleyball. While not strenuous exercise, they allow me to get out and move. I've dropped about 10 pounds and am holding steady as long as I play :) on a regular basis.
Walking may work, or badminton or competition programming (attach penalties for the loser like pushups or situps or a walk around the building). In my experience, to start losing weight it only takes a moderate amount of movement and consistency.
Just my $0.02