Thanks for keeping the advice coming. I guess I do have a lot of options. The hotel in Tignes is the Hotel Gentiana, which is is Lac de Tignes. It's 100 euros a night for a single room and includes breakfast (and maybe dinner...the hotel website says half board includes dinner and the booking site mentions only breakfast). It also has an indoor pool and hot tub and 50m from the lift. That sounds pretty good to me. I just looked and it has totally booked up that entire week...glad I got a reservation in.
It seems like the Altibus site has not yet been updated for all of the routes for this winter. I was trying to look for buses from Morzine down to Cluses; the prices are there but not the schedule.
I was also looking at Seez...I might be able to squeeze in a half day at La Rosiere.