I agree with the last posts on the Canon 17-55 f2.8 IS efs, I have one and would not change it for any of the WA lenses mentioned, I also have a 16-35 2.8 and it llives in a drawer now. The 17-55 is the one on the camera. I used it on my 20D, and now on my 40D. The 70-200 L series lenses are great tele lenses, if they are long enough for your needs. My hiking package is the 17-55 and the 100-400L IS. I llike bird and animal pictures. I am considering adding the 70-200 f4 L IS to my package for times I can predict closer in shots, with a more compact lens.


