A friend of mine at work is selling her piano. I've always had an interest to learn the piano, but I've never started because a) I don't have a piano, and b) I'm not sure if I have the dicepline to learn it.

However, as there is one available from a friend I thought why not, buy it and give it a go, and if I don't like it I could always sell it on right?

So what I want to know is. Is it possible to learn to play the piano via the internet - so could I look at tutorials online and learn to play? lessons here are quite expensive so not sure if I would want to pay someone to teach me when I could learn on my own. Although if buying a piano I might as well pay to learn...

Thoughts?