I've found a great website that will teach you how to play the piano very quick. Its aptly named Rocket Piano, and its really great!
Rather you are a newbie piano player, novice, or intermediate Rocket Piano has something for you to learn!
Rocket Piano has:
218 step-by-step lessons in 3 high quality books taking you on a journey from beginner to advanced in your piano playing. You'll discover the most effective ways to practice so that you master new material quickly, without developing bad habits. Learn to play the piano smoothly and flawlessly, while cutting your learning time in half!
57 video lessons - It's like having your own, private piano teacher at your dispoal 24/7. You'll see exact techniques and what they look like.
133 audio files let you hear excactly how each song should sound and what the tempo and timing of each piece shoulld be. It's MUCH easier to play a piece once you've heard it and can listen to the tricky parts over and over again.