If you work in a position where all you do is type, you know how long hours make your hands ache. This is unless you have a good keyboard. My hands were killing me after typing for 8 hours at work, then coming home and doing some side work for another couple of hours. After doing this for a few days, every time I woke up in the morning, my hands were hurting. I knew, I needed to get a better keyboard. I was in Staples one day and started typing on the Microsoft Natural Ergonomic 4000 keyboard. I took it home and was so impressed, I decided to give it a review.