In reply to pff:
I do not recommend the AC guide. Its well out of date, difficult to use and in my experience full of innacuracies.
I have done 11 trips to the Dollies and gave up on it long ago.
100 classics is a good start and whilst it is true that this very sucesful guidebook has concentrated too much traffic on too few routes there are still some uber classics in it not to be missed.
The new range of guides avaliable in german or italian are very good, I have not found these in english but despite my limited language skills I have coped.
I use the 100 classics to get a description of the descent in english and the far superior topos from the local gudes. This combination seems to work well.
For the Pala there are now 2 very good guide books avaliable in english.