Drupal or Joomla?
_giu: my partner set up Joomla for the Seminar Paper we wrote last year. don't know why he did that since later in the project we had to code, but after using it for a day or two I immediately asked him to set up Trac. it just was a pain viewed from the usability point. so, my advice is to stay away from Joomla if it's an option. I can't say if Drupal is better or not since I've never worked with it, but what I can say is that it can't get worse than Joomla! conclusion: use Drupal.