In reply to Patzl:
You could try contacting Martin at Jolly Good Alpine Adventures in Morzine, we've been over there a three times and always had a good time. The Chalet they run, The Sherpa, isn't the flashest establishment but it's plenty comfortable for someone wanting to get some riding done, the staff have always been great, as has the food and drink. A few times when we've been there they have guided us to more remote places and even taken us up in a van to get us to places the lifts don't reach. They also do transfers from nearby airports (Geneva in our case) and have transport and storage for bikes.