Hacking at Random; edition 2009. Four days lasting international conference on technology and security in Vierhouten, Netherlands. Not that much information available yet, but looks promising. If you have no plans for the summer holiday, be sure to visit https://www.har2009.org/ and the corresponding wiki.
The ticket price is now 185 euro till July 14th. After this the expected price is 200 euro.
Already enrolled