Ran across this Wired article:
Good and humorous review of GTD, 4-Hour Workweek, and Never Check E-Mail in the Morning.
Wracked with guilt and a sense of failure, I resort to actual reporting and call David Allen. He's very nice and suggests that to effectively prioritize, I should explode my individual tasks into a philosophical framework incorporating my life's ultimate purpose. Oh, OK. That's all I have to do.