Skol An Emsav, and to apologise for not including you in this blogs link lists before.
I took part in one of their two day intensive Breton courses last weekend and I've only got good things to say about them. Based in Rennes SAE organise adult education for those wishing to learn Breton. I'm note sure if they can teach via the media of English but you could always ask, I know some of their trainers are English speakers.
Anyway, excellent course with an excellent trainer, enough said.