Hopefully you don't have too many miles on the car at this point to make them question why you're just now bringing this to their attention if it's been pulling since you got it. I had that issue with my Impreza and they were bastards about it.
my car pulls to the left and sometimes when I brake, the steering wheel will turn. is that similar to the pulling problem you guys had. what did the dealer say it was? was it the alignment or something more serious?