A few weeks ago I stumbled upon the best solution ever. Gmail. Check out the whitepaper here.
Now it’s just Gmail and my moleskine. And it’s working wonderfully. I’m really getting things done, and enjoying the process for the most part.
One other thing I’ve added to my Gmail GTD workflow is Backpack which I basically am using as an online reference filing cabinet. Whenever I create a new project in Gmail I compose an email to myself with subject line “BACKPACK PROJECT PAGE: Project Name” and in the body I place a link to a Backpack page I’ve created for this project. Then I file this email in my *project:reference label. This way I can easily find more organized material I’ve compiled for larger tasks without having to dig through a dozen threaded emails to find it.
[edit]And I almost forgot to mention. GmailGTD obviously lacks a calendar/tickler. One solution I read about was using Futuremail as a tickler. But I needed something with a little more complexity, for example repeating events, calendar view, etc. So I installed WebCalendar on my server and it works great. It’s not super pretty (I haven’t even bothered trying to skin it yet) but it does the job. Only slight complexity to installation is setting up a cron job to handle email reminders which is actually really easy. Tonight I plugged in birthdays and anniversaries for all my friends and family with email reminders.