When working on typing, first you need the finger movement, and then the coordination. It helps to play typing games to make it enjoyable. Below are a few links to typing games.
Dance Mat Typing Make your way through all 12 stages and you can be a top typist.
Free Typing Games: This is the one that I have used the most. It has a large variety of typing games including race cars.
Typing Ghosts Type the words on the ghosts to destroy the ghosts
Typing Master Typing Games Typing games with bubbles and pac man style
Typing Games For Kids: A list of more typing games