On June 19th, 2004, the HCC Commodore GG organized a retro computing event which attracted many visitors from a wide range of retrocomputing scenes. This year, another retro computing day will be held, organized by a group of people who really liked the 2004 edition.
On September 10th, 2005 the meeting will be held at 'Zalencentrum De Kayersheerdt' in Apeldoorn, The Netherlands. As can be seen on the Retrocomputerdag website, several standholders have already applied.
Relevant link: Retrocomputerdag website