Dude, I say start off with some music theory. And if you'd like accompany that with a basic book on how to play the piano. I would definitely suggest the Idiot's Guide to Music Theory by Micheal Miller. This book presents easy to understand tutorials, quizzes at the end of each chapter with respective answers at the back of the book. It also comes with an "ear training" CD. I think the CD is a good starting point for training to play by ear, but i'd rather take a class for that, so as soon as I get out of Nursing school I'm going to enroll in a class. I suggest you start off cheap by reading the music theory book and searching good for a good piano tutorial companion. Beware of the crappy Piano for Dummies! This just came to mind, if you don't wanna learn from a book per se, enroll in a piano playing 101 class at your local college (one that is cheap. If you live in NYC, then you're in luck: the CUNY system is soooo cheap!) or something. It would be a lot cheaper than having a private tutor. I know my advice may be a little scattered, but I'm sure it'll give you some options to toy with.