My friend Arie Leeuwensteijn at Microsoft organizes the Dutch Developer Days. He's got the schedule all done and it looks pretty impressive. It's a two day event and it looks like it'll be big, because it is in the RAI in Amsterdam. This is the same location where TechEd Europe will be held this year.
View the schedule at: http://www.microsoft.com/netherlands/msdn/devdays/default.aspx
Arie has a blog too, have a look: http://blogs.microsoft.nl/blog_arie_leeuwesteijn/