We were happy to welcome Dries Buytaert in Hungary at our Drupal conference, around one month ago. We had Marcell Kiss-Tóth helping us with a video camera, and after his hard work with the editing, the conference session videos are now downloadable. You are most probably interested in Dries' presentation, since all other sessions were in Hungarian. The downloadable is very good in audio quality. You can download the video from drupalconf.amon.hu or alternatively from liktor.hu.
As a side note, after the conference, I also decided to publish my Drupal lego figure shots, which were used in my presentation. These are licensed under a Creative Commons license, so you can reuse them in your presentations or build upon them if you wish.