In reply to Miskawroe:
I used Tacheddirt as a base and did Akhsoual, Anrhemer and Angour as day trips from there. All excellent hills (3600-3900m) with good easy mountaineering routes (would be scrambles in summer). Met nobody on the hill, although it was a) back in 1990, and b) Easter. I gather the area got pretty badly hit in the earthquake though, so not sure what the facilities would be like now. The locals could probably do with some income, I would guess. If you're going in winter then Des Clark's guide for Cicerone, Mountaineering in the Moroccan High Atlas, is excellent. Particularly recommend the North Spur of Tazegzaout, which isn't in the guide but you can see it in the pic on p139.