Built most of it over the Thanksgiving weekend and here is the result:
www.class-central.com
Built in PHP/MySql using Symfony2, Doctrine and Twitter Bootstrap. Source code can be found here:
https://github.com/dhawalhshah/class-central
The 'extras' folder in the repository contains a dump of the database dump(with all the data you see on the site) and the schema.
I have also created a circle of all the instructors with Google+ accounts:
https://plus.google.com/107809899089663019971/posts/AoJMVCeQw62
Any feedback/suggestions would be appreciated.