Seeing how your male Dane is so laid back I really don't see a problem getting a male BT. As with any breed socialization is key, and BT's are not an overly aggressive or protective breed, so as long as the puppy is properly socialized and particularly since he'll be brought up around the other dogs I don't think getting a male would be a problem.
As a matter of fact, statistics show that the worst dog-on-dog bites vets see are usually from
females in the same home! Having a little royal bitch myself at my house I know how they can be!
I think it would only be a concern if your dane was dominant or very territorial/protective....
Good luck! And I wish there weren't any BT's in shelters here either!! There are too many poor babies that need homes, it's unfortunately never ending...
