I know these "what lenses should I bring" posts can get a little tiresome, so for that I apologize in advance. But along the lines of a recent thread about concerns about the Sony APS-C lens roadmap or lack thereof I thought I would ask. I have a late summer vacation planned at a few national parks in the US and Canada (Canadian Rockies). I imagine the majority of my images will wind up being landscapes and I've got the wide and mid range covered with the 10-18 and 16-70. However, I assume there will also be some great opportunities for wildlife shots and I'm not sure what to do about that. In fact, this has been an issue for me since I got into the Sony system. I'm not a birder, but I do like to take wildlife photos from time to time -- often when vacationing. The 55-210 is light and may be sufficient, but I'm not sure if it is going to be long enough or sharp enough if I have to crop. What have you used on similar types of trips?