In reply to Andy Chubb: There's very little fixed gear - most belays are naturally protected. We climbed routes up to 7- (up to 13 pitches long) and our rack was:
Double set of nuts 1-9, plus a 10.
6 or 7 cams, finger to fist size mainly.
1 set of microwires.
14 draws.
This is the most you could need, slim down as you see fit. (if you place loads of cams adjust accordingly)
Most of the time we walked off routes. Some of the stuff has bolted abseil stations. The Presten has bolted abseils from midway to the bottom, beyond pitch 4 it's all trad.