I shoot a 50D, and do 75% sports and 25% other, such as casual family stuff. My budget is in the $900 range, and I am down to 2 lenses: 24-105 f/4L or the 17-55 f/2.8 IS, unless there is another recommendation.
I am thinking that someday, but probably not in the too-near future, that I might switch to full-frame, which would rule out the 17-55, but it's a long enough time-frame that it wouldn't matter.
What I am looking for is a lens I can keep on all the time, and use it probably mostly for the casual stuff, and using my 70-200 f/2.8 IS for the sports stuff. For example: I am taking a few trips this summer with the family, one to Sesame Place in a few weeks, and then Philadelphia in August. I am going to take the 70-200, but don't really want it on the camera all the time, so I want something decent to keep on for that kind of thing..
I do have a 28-135, but would like to sell it to further fund this purchase.
So, if you can understand my jibberish, all advice will be taken well with me, that's why I post here, you guys ROCK!!
Thanks in advance,
Ken

