Good for you for getting your pup from a reputable breeder and not supporting the backyard breeders who breed their dogs because they can or for other stupid reasons, like "Fluffy wants a boyfriend!" or whatever.
I highly suggest you check out
http://www.goldenretrieverforum.com/ and look through the puppy forum. There's tons of threads and good advice from trainers helping people with normal golden retriever puppy issues and threads like "What do I need before bringing my puppy home?" "Ten Essential Puppy Supplies", etc. It's a great informative site that is breed specific. Lots of posters are trainers and have champions in obedience, agility, conformation, etc.
Have fun with your pup!