Thanks to Colie for spotting these posts from back in 2007. I thought it was worth pulling them from your comment and putting them in to a normal post so they are easier to find in the future.
- Why a Filofax - Part 1 of GTD with your Filofax
- Using a Filofax for GTD - Setting up the pages for tasks and calendars
- Filofax for GTD - Tickler file