I've been surfing the babygoes2 website and have come across this place which looks great. www.babygoes2.com/g_france_lang.asp
The main plus point for us is that there is a creche with English speaking nannies!
Having made enquiries with the holiday company in question they still have availability for the summer hols which really surprises me as most places seem to have been booked up months ago for the peak season.
Before I go ahead and make a booking, I'd love to know if anyone knows anything about it or the holiday company itself (Crystal holidays). I'd be interested to know if anyone can recommend it. It sounds wonderful but dh is slightly dubious as they aren't already fully booked for the school holidays!