Linking the higher levels / altitudes with the effective GTD "routines" on lower levels (projects, actions) still is a problem for me. It seems this is in fact a problem with the standard system, as even hardcore GTDlers have to admit, that "the book" is not very helpful with this issue.

On StevePavlina.com, I found a few helpful articles about this:

The essential missing half of getting things done

personal accountability system

from purpose to action

I remember DA saying in one of his interviews with Merlin Mann, that you are procrastinating if you are completing the wrong projects. What I liked about Pavlinas GTD hacks is the different orientation: He recommends a top-down-approach, claiming that standard GTD is essentially bottom-up. Although I am not into esoterics at all (cf. Pavlinas post about polarity), I can confirm that just whacking away next actions and projects the whole day just did not make me happy, and reading the second half of GTD did not help at all. This is also a recurrent problem on this forum.