My gut feeling is to build a 17-40, 24-70 and 70-200+extender full frame setup. My current 50mm and 100macro will complement that too.
swap the 17 for the 16-35 and ill give you my girlfreind for that bag ..
you pimp!17-40L. You really have to want f/2.8 very badly to go for the 16-35L.
