How can you slow down a Doberman???

We have a 3 year old male Dobie that runs...EVERYWHERE! There are 2 small flights of stairs when you first come into our house & if he's coming in, you better get outta the way...he'll run right into you. What sort of training could we start doing with him to try & break him of this? He gets lost of exercise outside with our Border Collie, but still comes inside like a bullet. And not just upstairs, but also through doorways, I have been pushed against a wall for him to get through first. We have a 6 mth old that will soon be crawling around & I'm hoping that he will still be able to come inside, but I really need some suggestions as to what to do. About the only time he is an angel is when his choke collar is around his neck & on his leash, but I don't have the time to walk him everywhere in the house. If anyone else has had Dobies, is this something typical of the breed, will he grow out of it at a certain age? Any help is greatly appreciated!