I just got my new EF 17-40L lens and so far I really like it. I think it is the perfect complement to my 24-105L, as well as my 50 f/1.4 and 100 f/2.8 Macro.
Next I plan on selling my 70-300 f/4-5.6 (non-L) and eventually getting the 100-400L or similar Sigma (any thoughts on that?).
These I use on my 40D.
Jim

