Adam Karpowicz(sp) book should definitely be on your reading list. I have read the reviews, but not the book. A number of bowyers I hold in high regard have read the book and report really positively on it's content.
Don't think we are telling you that you CAN'T do it, we're just trying to encourage you to learn some of the basics first. Sufficient horn, sinew, and hide glue can be expensive, not to mention your time.
And when you have read Adam's book, can I borrow it, please?