The fact that he bit you and your husband is really troubling, and will pose problems for the rescue you got him from. I'm so sorry to hear this.
We were thinking of a female, and a younger one than Louie so he can do more "teaching" than defending himself. Winston is neutered. We're apprehensive about rescuing another but i'd feel bad about getting a puppy when there are so many dogs that need homes. Our local spca just brought in a truck load of dogs from Louisianna so, we might go check out all the pups there.
We do need a bit of time to rest though. It's like my husband says "it's like breaking up with someone...you don't go out and get a replacement right away"...well at least we never would...lol
thanks for all your support,