DrupalCon is the official Drupal unconference that attracts the most talented open source developers and innovative web shops in the world and brings them together to share knowledge, make decisions on the future of Drupal, and get to know each other in person.
It’s also the premiere opportunity for Drupal users to learn what they can do with Drupal, find partners for future projects, and meet the people behind the code.
Although I don’t use Drupal as much as I could, I love the site the use of colours and illustration for there event. Check it out http://dc2009.drupalcon.org/