Do any of you use the GTD Outlook Add-in software? I have been dabbling with GTD for a while now, though I've not really implemented it. And I bought the stand-alone version of Outlook a while back (to allow me to share calendars with a contractor I work with), but I've not installed it. Is the add-in worth the cost? The demo sure looks like they have it all worked out, and I can't afford to spend the time to learn Outlook and integrate GTD. I guess my question is, how well does the add-in work?