I know you are going to hate me for this, but the best tutorial you can do is try and try and try.... and try... Nothing like practice. I am learning like you are, and the best stuff I ever came up with was thanks to those times I said "I wonder what this command does", or "I wonder what happens if I do this". I probably have every Maya book on the planet, and they are good for reference, but the best comes from the effort you put in it.
Keep up the good work, ok?