For those entering teacher training generally A level Latin is required. I would suggest trying AS Latin in June 2011 to see what your Latin knowledge is. Only two providers (King's London, and Cambridge) now train Classics PGCE teachers, and, given the advanced age of most of us, the new teachers are fewer than the retirees. Make of that what you wish. Good luck. I don't think identifiers are allowed on this site, but if you want any further advice post here and I'll think of some cunning way to subvert the filters.