I think as a first time dog owner you should not get a Rottweiler or a Bull Terrier. Rotties are very large, powerful dogs that need experienced owners. Bull Terriers are smaller but also powerful and very high energy, as well as prone to neurological disorders.
I do actually think ChessaQ was talking about Bull Terriers, not Pits.
I think for a first time pet owner a Beagle would be a much better choice. They're smaller, typically sweet tempered and fairly easy dogs. They can be a bit stubborn and follow their nose but in general they are great dogs. What is it about all of these breeds that made them appeal to you? Have you spent any time with any in real life or is it just the look and description that you like?
Once you decide on a breed we can help you find a good rescue or breeder for your new dog!

Let us know what happens.