Thanks Ready2Go, that's a very good resource.
Here's what was suggested, which sounds excellent, plus car (and we would also hire a driver).
Not yet sure if we can go, but if we do, will use this plan and service.
Holiday departing approx. 9th March, 2004
Fes airport/hotel transfer
3 nights La Maison Bleue, Fes BB
2 nights Desert Inn, Erfoud HB
1 night Chez Pierre, Dades Valley HB
1 night Kasbah Ben Moro, Skoura HB
3 nights Riad Les Yeux Bleus, Marrakech BB
Hotel/Marrakech airport transfer
PRICE PER PERSON (sharing a twin room) £660