The Dutch PHP Usergroup (phpGG) is having a special event at the end of January (on the 24th) - something they're calling the "phpGG Frontend Special".

Here's more from Stefan Koopmanschap's blog entry on the event:

I am quite excited about us organizing this event. This is our first step towards a full-blown conference, and I am proud of the speaker schedule we're putting together. We have speakers from Microsoft and Adobe who will go into their respective frontend and RIA technologies, Boy Baukema - the javascript expert at Ibuildings - will be talking about Javascript, and Robert Jan Verkade will give a take on HTML and CSS technologies. More on the content of the different presentations will follow as well as the actual schedule.

The event is free for active/paying phpGG members and will be 15 Euro for everyone else (for a pre-sale price, after that it's bumped up to 25 Euro). Along with the admission, this also gives you a one year membership in the phpGG.

More information on the event can be found on the phpGG group's website.