Here are some products which have helped me along the way. Maybe, if you have similar issues, you will find them useful as well.
1. Kneeling Chair
2. RSI Issues? Try Quill Nib (Mouse Clicking Software)
3. Exercise Ball
4. Balance your body with a Mini Trampoline
5. Move a little with your personal DDR machine
6. Treadmill
7. Massage chair
I’m sure missing an item or two here, may add later.
Source: Posted on TheConceptualist by Sahar Sahid -- Reprinted with permission -- April 9, 2008

