What a fantastic Christmas present!!!
Welcome to the both of you, and I can't really add any more thatn what everybody else has put before me. I would definitely say the most important thing right now is to start researching the food you feed your bully. Go to the dog food ratings link and that should really help you - I was ashamed and astounded to find out that the food I had Maggie on was a 1* rated food, and the change in her has been fantastic since I changed her to Fromm and now our puppy, Daddy, is on the same food.
Other than that all I can say is ............PICS PLEASE!!