In reply to timmyh:
I was there in May/June this year... I think the advice so far has been pretty spot on, but here's my tuppence worth anyway:
- I found it unpleasantly hot to climb in the sun, even in May. We did have a cold snap when it became a lot better for a week or so. Some of the time we were there we were restricted to scurrying as swiftly as we could up north(ish) facing faces. If I went again I'd go for late April/ early May
- There's really very little below 6a sport I think. Reve d'Aicha as mentioned by Jon is one of the few at that grade. If you weren't averse to pulling on bolts this might open up a few more options as the bolting isn't particularly spaced (but don't quote me on this). I don't even think that there is much easy trad there (the "mountaineering route" up one of the gulleys on the North face of Oujdad gets about grade 5 (HVS ish?) I think, but some Spanish chap who did it when we were there said it was tosh).
- The Ravier guide is still the one to get. His website has some topos on it (in French).
- Having said all that, it is a wonderful place with stunning scenery and friendly locals. (We stayed at Said's gite which is nice and comfy and we didn't get ill for a month.) So even if you only have a few routes to go at you'd like it there, I'm sure. It's just a question of whether it's worth the effort to get all the way there or instead head somewhere else (I presume Todra has plenty; or the area around Tafraoute has some decent looking trad (I've not climbed there but hiked around it and it looked nice)).
Good luck
Adam