In reply to Shapeshifter:
Firstly, there is a lot less polish than you may expect. As always, be prepared for slab cruxes, which quite often rely on feet friction though being able to crimp on those small pockets will help.
Secondly, it will be sunny so I suggest you try and get 2 mornings rather than full day, if you can swing it.
You could head up to the Styx wall (all the 6s are good there), but it starts at 6b and they are tough for the grade and the routes are fairly samey. Récréactivité (6b) is the stand out classic there, I think.
For a good few hours climbing, I suggest an early start at the Mur Zappa and Pepsicomane areas to pick off some classics (see below), and then when it gets too hot head all the way east, past the inspiring Face Ouest, to the newly developed west-facing cliffs nearest the village. These are in the shade until the late afternoon (if memory serves me correctly) and there absolutely NO polish!
Pepsicomane and Styx
La Béda (6a+) -- stout jamming 6a+
Pepsicomane (6b) -- tough wall climbing, see the Edlinger soloing film 6b
Goulot Fou (6b+) -- the classy arete just right 6b+
Zappa Maniac (6b+) -- epitome of the Zappa wall 6b+
Far east cliffs
Les Mystères de l'Ouest (6b) -- classic Buoux pocket work 6b
Bicolore (6b+) -- outstanding varied route with a trad feel 6b+
Entre tes seins Droite (6b+) -- action packed 6b+
Boomerang (6a) -- a very good 6a
Not many in 6c grade to reccommend, but if you are capable, the must do 7as are Le Loir (7a), Songe Sucré (7a), Les diaments sont éternels (7a), TCF (Turbo Cibi Facho) (7a), and of course Rose de Sables (7a).