Ok, the other day I asked about selling some lens to get the EF 70-200 f/4 L, I went ahead and got the lens without selling my others . I have a 28-135 IS USM and 70-300 IS USM non L lens. I acquired a 70-200 F4L and now I am wondering if I should get rid of the 70-300(+ maybe the 28-135) in favor of a 24-70L or a 24-105L as my walk around lens. If you have a suggestion for a better walk around lens I would appreciate your thoughts. I have decided to go ahead and spend the extra cash in the event that I might upgrade to FF later on. All suggestions and advice are welcome. Thanks for your time!