If you check out the attached link to the CAA web site, you'll find a list of all approved flight schools in the UK and abroad. Any of the schools who can do IR training will be able to do the MEP class rating.<a href="http://www.srg.caa.co.uk/pld/fcl/fcl_home.asp?Page=fcl_schools_body" target="_blank">CAA SRG</a>
Tayflite in Perth is a personal favourite. Small school with excellent friendly service.