Besides the others mentioned already. there are some other more commercial projects that you might be interested in that will have a much more "ready-out-of-the-box" approach.
This one seems interesting, but I havn't seen anyone license it yet
And this one is more expensive, but might be available sooner:
Not that I would want to discourage people from getting a rPi, but if you want something that you won't have to tinker with, these will be more to your liking.