I found out about iGTD from reading the download of the day link from Lifehacker. Sounds good so I have added this as a task to my @computer task list!

iGTD is a Mac OS X application for implementing the Getting Things Done methodology from David Allen.  It is a very nice looking application that also integrates with Quicksilver.

Merlin Mann over at 43folders.com also has good things to say about iGTD.

Be sure to check it out!