OK, done a
spot of research. For anyone else who finds this thread useful in future, there are currently six FTOs outside JAA states (i.e. in the USA), doing CAA-approved PPL courses:
Naples Air Centre
Cabair College of Air Training t/a European Pilot Training Academy (Kissimmee & Moncton)
European Flight Training LLC (Florida)
Western Air (Thruxton) Ltd in association with
Sunrise Aviation, Florida (but neither of their websites mention a link)
As BackPacker suggested, they're all in Florida, except for Anglo-American Aviation in San Diego.
I suspect that I'm going to be living in the south-west Midlands by the middle of the year, making my list of reasonably-accessible airfields to be Halfpenny Green, Shobdon, Gloucester and Wellesbourne. But none of the US FTOs listed have partners at these airfields. Oh well.
Thank you very much for your helpful suggestions. I'll put any more interesting and useful things I find out on this thread!
cheers,
mtw