i would definitely want a norwich terrier or norfolk terrier!
actually before getting my yorkies, i had contacted a couple of norfolk terrier breeders (they also show and were members of norwichandnorfolkterrier.org) to get more information on the breed...norfolks are still pretty rare with i *think* less than 1000 puppies born in the US per year so they were really really expensive
i think once i get my house and have a wonderful backyard i might revisit norfolk or norwich terriers ... they are wonderful dogs and beautiful as well

... i would feel safe having them with my babies because they only get 10-12 pounds and are both really good with other pets and dogs!