Bow hunting is great. There is nothing like getting a deer 'the old fashioned way' (if you could call it that). Ive been at it for 15 years, and every deer Ive taken is a trophy, no matter how big or small.
It is also the most frustrating thing a person can do to him/herself. Be very patient, as things will ALWAYS go wrong if they have a chance to do go anywhere.
I learned by reading and asking allot at the local pro shop. Go for the most stable platform you can find. Locally available big name products, can be fixed and tuned locally.
Goto a shop and shoot some bows to see what you find comfortable to shoot.
Good luck,
kb