Trying to Get Things Done, aka GTD redux

Well, I've been "playing" with GTD and other time management "systems" for the last year or two; David Allen's "Getting Things Done" is by far the most comprehensive system, although I also enjoyed Thomas Limoncelli's "Time Management for System Administrators" and got some good ideas out of it. The hard part is the tools, PDA or Dayrunner or Web, although now that I'm doing a full reimplementation of GTD I'm finding that one tool just won't cover it all; David Allen says as many buckets as you need and as few as you can get away with.
I started out with Outlook, my Blackjack II Windows Mobile device and an old Dayrunner with only task sheets and a blank pad. I also have a a physical inbox and tickler file at work, an inbox at home and reference filing systems both places. I started my lists in Excel, with tabs for each context (@work, @home, @errands, etc.) but I had used Remember the Milk previously and today I moved the items from Excel into that site. My primary reason was that you can have one master list and use the tags to break it out into separate views by context. Time will tell, but I look at my boss, my coworkers and the folks I support and at least I know I'm lightyears ahead of them.