akc.org gives a profile of each breed and their characteristics. It is a good resource for ensuring you have selected the right breed. I echo the comments about looking for a rescue. There are so many dogs that need homes. Do not ever buy from pet stores as their animals are breed in horrible conditions. akc.org has links to breed clubs and rescue groups. sometimes you can find a reputable breeder in your area who is looking for a good home for some of their older dogs.