What school are your children attending in Dubai? If you are on British Passports I would personally recommend you apply to DESS, Doha College and Park House English School. DESS is good if you intend to relocate your children back to the UK in the near future but if you intend to be expat for a longer period of time I would seriously consider Park House! You can apply on line but you really need to visit the school in person and stress the importance of your application.