These days i'm thinking that my 24-70 is a little lacking on the wide end and on the tele end.
I'm thinking that a 16-35 and 70-200 combo might be an idea instead of the 24-70 middleground.
I used to own the wide (17-40) and the tele(70-200) first for a year, then got the 24-105 to cover the middle. Now I am thinking of the 300...but not sure F2.8 or F4. Weight and cost vs F2.8 aperture and the "best image quality" for all canon lens. :think: