What's a good deer bow?

[Rustywreck]

The short answer to your question is: Any bow you can shoot accurately.
Beyond that, the question is too broad to really answer.
If your just starting out, limit yourself to 60lbs of draw weight, and buy something affordable to you. You can always trade up to a more expensive, higher quality bow after a year or two of hunting and shooting once you've decided your hooked on the sport.
More important than the bow itself is practice as much as possible and do a lot of reading and question asking to learn what you need to know to set the bow and arrows up to hunt.
Good luck and ask all the questions you have. There are a lot of people on this board that will help you with questions.