Goldtouch Ergonomic Keyboard

This ergonomic keyboard might be the best out there for people wanting to avoid tendonitis in their wrists from typing. It puts your hands at the right angle so they're comfortable and much less prone to tendonitis.

I've been using one of these (my dad gave me his) for a couple weeks now, and I've already noticed a difference. I don't tire when typing anymore. I don't have to stop after a while and flex my wrists. It's really cool.

Unfortunately, it's kind of expensive. It retails for around $125. But if you do a lot of typing, I think it's definitely worth it in the long run. I'd say 125 bucks is a small price to pay for not getting a chronic health problem.