For those of you who don't know yet, the first European Drupal Dev Days Camp is on in a couple of weeks from the 4th to 6th February in Brussels. The Drupal DevDays in Brussels are targeted at Drupal developers with varying skill sets: from beginners to core contributors. However, the sessions will be exclusively focussed around technical topics. Check out http://bxl2011.drupaldays.org for more info.
In addition to that, FOSDEM 2011 is on nearby the same weekend, as is the CiviCRM Developer Camp on the 3rd and 4th. The CiviCRM camp is aimed at those that want to learn more about CiviCRM from the people involved in its development. If you are interested in improving your CiviCRM admin skills or learning more about developing with CiviCRM, then this camp is for you.