GTD & OmniFocus
By far, one of the most popular implementations of GTD on a Mac, is with OmniFocus. It does an elegant job of GTD project and action management on the Mac and iPhone. There’s a great write up from the “Mac Samurai”about his journey with GTD & OmniFocus. We thought you might find this useful.
(Yes, we know many of you like “Things” by Cultured Code too!)