Thanks! I had heard about doing everything with the dominant dog first on a tv show, and I do that with my dogs now. I don't know if it really works for us or not, but I still do it just in case. Nova is so submissive that I don't think I'll ever have problems with her. She literally falls on her back and wags her tail constantly when she meets any dominant dog. She was also the most submissive in her litter (and that's one of the main reasons we picked her -- we didn't want Mandy to beat up on her like she did with Buttons. Poor dog, he just laid there and let her bite him, all because he was blind and accidentally wandered by her food bowl a few times ).

Lulu(the dog we will get)'s foster mom said she's semi-aggressive with unneutered males. Even if we had a male he would be neutered, so no problems there.