How exciting Johanna! Your first dog - and you didn't jump in with a little one either! Just remember no matter how big he is he is still a puppy and will do all those little puppy things that may make you wonder why you ever wanted a dog. But then he comes up and gives you those puppy kisses and you know why! Or he curls up next to you and just wants to be petted and loved. I am sure he will get along great with the kitties. Congrats!!