In reply to 1poundSOCKS:
There's a good guide available at the campsite - I think it's about 25 Euro if I remember correctly.
It's a local one and includes additional sectors to the Rockfax guide.
I had both when I went - Rockfax to get psyched before going and then bought the local one when I arrived (I couldn't find it online).
Rockfax was useful as it included other crags in the region and we went to Saint Leger for a few days as well.