I received a couple of comments on my post about Yojimbo putting forth Journler as a more feature rich and free alternative. I can’t argue against either of those points – It is a great app with an amazing feature set for the price (did I mention it was free). In any case, OK Scarfone has a great write up of how she has implemented GTD using Journler. I am pretty happy with my system but it might help others who are searching.