I'm looking for the BEST approach to beginning development of OS X native applications. I've been completely immersed in multimedia programming for the past year or more after which I feel dissatisfied. I haven't developed anything to run directly on an OS since CompSci school days, and that was for Wintel machines.
I do have a pretty good working knowledge of unix, I've considered the "System Overview" documents bedside reading for about a month now, and I've also been accruing and fiddling with the apparently required development tools. What I need is a completed project to learn from. Probably a fairly simple one, but one that covers all of the bases as far as file manipulation, UI, etc....
Any feedback is appreciated.