Mark Forster have just finalized the latest version of his all in one task management system, Autofocus Version 4 (AF4). It is much simpler than GTD and seems more suited to the way I work. Perhaps you’ll find it is the same for you. 
I originally implemented earlier Autofocus as prescribed by Mark, manually writing the list in a paper notebook. For this AF4, I chose to implement it web-based, for easy access from all my web devices including my Treo Pro. Currently, I’m doing AF4 using Google docs spreadsheet. More about that later …
See also …
- sabre23t’s af Bookmarks – Autofocus related links
- mohdadib mentioned Autofocus