In my two-odd years dealing with RSI, one of the things I’ve noticed is that taking a break and getting some extra oxygen into my body often makes sore hands feel better, at least for a while. I’m sure it’s no secret that exercise is good for you, and you should be working out 30 minutes a day 5 times a week (or whatever the recommended dosage is up to now), but I’ve found even little mini breaks to be helpful during the day. A five minute walk or doing some yoga stretches can make your sore hands, back, neck, (insert ailment here) feel a little better.
If you are looking for exercise buddies (let’s face it, it can be hard to get motivated by yourself) try a site like Fitness Buddies which has a forum dedicated to helping people find workout partners.