These dates are not official until shown on the ECTA web site and may be changed. Good info to start thinking about how to plan your year though.
UPDATE (28.October 2011): Dates are as follows:
April 28-29
June 2-3
July 7-8
September 28-29
UPDATE (28.October 2011): Dates are as follows:
April 28-29
June 2-3
July 7-8
September 28-29