Soon third Libre Graphics Meeting will be held at Wroclaw during 8th and 11th of May. It is open and free for all participants. Its main goal is to bring developers and users of major open source graphics programs including Blender together. See http://www.libregraphicsmeeting.org/2008/index.php?lang=en for more information.
This year they are going to make their best conference so far. They need your help for this though. They are going to raise $20000 to provide flights for developers attending. Support your favorite application by donating at http://pledgie.com/campaigns/613 .