I have had a fair amount of experience with the wheaton I can tell you to research the common health issues with them. Be VERY careful when choosing a breeder!!!! Try to talk to others who have pups from them and check into the general health of the line.
Maybe talk to a vet and get more information before choosing the breed.
They are wonderful dogs, but also very high energy and don't like being left alone, so if you are a busy family, away from home a lot, they might not be the best pick for you .
Best of Luck! Jewelbee