Craig, you can also check out Sam Harper's poorfolkbows site. He does a lot of board bows but the fundamentals on tillering are well covered and could help. There are also numerous build-alongs in the How-to section of this site. So much information it will make your head spin. Good luck and post your progress.
Hey John, was wondering when that turbo build was going to get finished. That is a great example of how quickly a bow can be made, but also how patience is the greatest virtue in bow building.