In reply to bengascoigne: There was a book called The Rock Climbing Guide to Europe, which had mapped crags across Europe, and gave basic info on each one, with a selection of routes.
We used it as a bible for when we went to out of the way places.
The only link I can find about it is below:
http://www.amazon.co.uk/The-Rock-Climbing-Guide-Europe/dp/1852234504
Another vote for Saussois though, and I think there are lots of crags around Toulouse, Perpignan etc