UX London is a three-day event for user experience designers that combines a day of inspirational conference with four half days of practical, in-depth, hands-on workshops, all presented by some of the biggest names in the industry. Speakers include Don Norman, Leisa Reichelt, Dan Saffer, Luke Wroblewski, Jared Spool, Jeff Veen, Eric Reiss, and Peter Merholz. If I were in Europe I'd definitely want to be there.

http://uxlondon.com/