You can measure yourself up and good a pretty good idea of your drawlength, but it is best to go to a pro shop and they'll help set you up correctly. You have to think about what your motivation for getting into archery is? Hunting, recreation, competitive? and then go from there. You also have to think how much you can afford. Accessories cost quite a bit and in some cases as much as the bow. Do you want to just start and see if you like it? What about buying some inexpensive used stuff to determine that? An idea of cost is pretty open ended. A used bow can cost anywhere from $20 to $700+. A new bow is ~$200-$800. A sight if you plan to use one $10 to $200. Release (again if you plan to use one) $15-$150. Arrows $30/dozen to $200/dozen. Rest $20-$85. Stabilizer $5-$100. These are just some general ranges, and it all depends on what you want.