I don't yet know if the quality of Crumpler bags would outweigh the extra cost. Timbuk2 gets mega points for letting me have Ireland's flag for the custom colors, though. :) I'm going to poke around a friend's Timbuk2 before I leave work to see if the extra pockets they have function like it looks like Crumpler bag would.
Which do you think?
Crumpler - moderate embarassment
Timbuk2 - customized messenger with laptop insert.