Thanks for all your answers, I'm looking to do more "proper" iOS development as time goes on rather than just winging it for one app and never returning :) As suggested by callmeed, I'm going to try and book a week off from my day job as trying to learn something like this in the few hours I have free in evenings isn't going to happen (at least not productively) and I've got a target of what I hope to get done by the end of the week - thanks for your suggestions everyone, and I'll be in touch shortly callmeed :)