I think you should apply to all the places you can. Seriously. What's the worst that can happen, they say no?
I really believe that the more firms you apply to, the better chance you have at getting hired (that's why I wrote ApproachTheBench, because I wanted it to be easy to apply everywhere quickly.)
My 1L year I got probably 95 rejections but I did get an offer, so hey that's $25k in the bank for sitting around in a library for a summer. Those rejections didn't seem so bad anymore! :-)