Hi flipgirl, I ditto everything everyone else has said before me. However, I want to point out one thing. I'm now the owner of a puppy who is exactly half Doberman and half Labrador. Unfortunately, genetics doesn't play out the way we always want to, and this puppy looks and acts 100% Doberman.

Keep that in mind, please. Crossing Breed A and Breed B will not give you a puppy exactly half of each. Genetics is more or less a shot in the dark and you get exactly what you pay for - a random mix.