Coming from someone who just bought a bow in January:
I bought the PSE stinger package from huntersfriend because it came with the case and the broadheads for a little less than the Bow n Arrow shop which doesnt include either of them. If you go to Bow and Arrow shop youll pay a little more, but the quality of the sights, the rest, and the release will be better. You wont need to replace any of it for a while and the money you would spend on upgrading could go to a case and broadheads. They will also help you figure out a good draw weight and draw length set-up you will need. They will also teach you some shooting form techniques (most important thing in my opinion!!) before you buy. If I was to do it over again I would buy from them LESSON LEARNED........ Another note, you can try several of the bows there and see which one is the most comfortable for you.
Also you would be supporting a small local business and could make a few new hunting friends in the process.