Free: Contests & Raffles.
Find the bow that fits you good and then watch ebay. I recommend bows that are just over 2 years old and you'll find massive discounts.
Go with a traditional bow - recuve or longbow. It's the best, you'll never regret it. I hunted with a compound for awhile but switched years ago, would never look back...
...traditional bow... They are elegant, light, simple, and very very deadly when well handled.
Go to a good pro shop, shoot as many bows as possible. Buy what ever fits you the best. Then just really practice! it makes a ton of diffrence. The sooner you get your setup, the more time you will have to practice.