Are you looking for a decently priced FIDE rated Classical Chess Open tournament in May? Do check this out: http://selangorchess.blogspot.com/2012/03/39th-selangor-open-1st-may-to-6th-may.html Though the timing of the event may not be suitable for school-children, anyone with 4 days of leave to spare and wish to take part should strongly consider.