Dear Lazyweb:

What are the best Free Software conference orginizing / scheduling pieces of software?

We are looking for things more sophisticated than Drupal\'s conference module. Two years ago we used expectnation, a kickass hosted service that Edd Dumbill kindly offered to GUADEC free of charge. But we are looking to host our own within the GUADEC infrastructure now that we finally have started looking into building real infrastructure for running GUADEC website on an ongoing basis as opposed to rebuilding it from scratch every year.

So, please leave comments and share your experience. Thanks in advance.