A site built for a company that does seminars in the Chiropractic field.  This is a very deep site.  Check out the Find a Doctor page.  It pulls information from the list of users that have taken the required courses to be listed as a BGI doctor.

The pricing on the site is based on the type of customer:  Student, First Year Doctor, Doctor, Staff, etc.  All based on the user's login.  The "Our Staff" page is also populated by the user information.  The Calendar is automatically populated whenever a new seminar is entered into the system, along with all of the correct seminar pages.

Again, a very deep and complex site.