I have a week off in between jobs, and I want to use this time as a chance to get things in my life organized. So I've just started reading Getting Things Done, and I like it so far.

Of course as I read I can't help but think about the tools I could program to help me do this task management process. But that's a distraction, a way for me to replace something I don't enjoy (organizing) with something I do enjoy (programming).

Luckily, I have noticed that many programmers before me have procrastinated in this way, and there's lots of tools already out there, and I don't have to get distracted with programming quite yet. But what tools have worked well with GTD? Here's some general domains that occur to me:

• Task tracking, with easy item adding, and a distinction between the inbox, actions, projects, etc. I imagine a web-based system, but with some non-web interfaces for certain aspects. Or, at least, web-based with a good HTTP API and perhaps some non-web tools that use that API.
• Email tracking. Email is my bane. I don't even know what this would look like. Preferably in the form of a Thunderbird extension, or maybe (maybe) a clever IMAP intermediary. I subscribe to many mailing lists, which are very different from other kinds of email; extensions or just processes that handle both kinds of email intelligently would be appreciated.
• Calendars. Paper or computer? I'm not sure -- unless there's something compellingly simple, I'm likely to stick to paper, because paper is actually pretty nice. Opinions? Potentially one of the web-2.0-ish calendars with a public API and appropriate tools (integration with task tracking?)

I've just started the book, so other ideas might occur to me. Probably in lots of cases the best solution is using some simple tools along with good work practices using those tools -- encoding every concept and goal into the tool itself is generally a bad idea. For instance, I've seem people suggest the GMailUI extension as being useful for a GTD-like organization process.