Drupal is a very powerful content management system that can be used to accomplish a wide varity of business goals. It can be used to build simple or very complex websites. It is important before you start your design project to understand what is possible so you can avoid costly implementation mistakes. It is equally important to have a plan and understand how to construct a workable plan to accomplish your goals.
In this presentation, given at Drupalcamp Atlanta this past October, I discuss techniques and best practices when creating a plan to build and designing a drupal website.
Additional Resources
Does Your UX Designer Design for Drupal?
Rational Redesigns - Visual Planning