it's probably been done to death on this site but the book "Motorcycle journeys through the Alps and Corsica" by John Hermann is great for planning trips.
www.alpineroads.com is also pretty good. but don't believe what they say about the Albula Pass, it's a great ride (i think the writers of this site must be very sports bike based, anything slightly bumpy seems to be disapproved of).
If you're in St Moritz area pop over to Italy and do the Passo di Gavia, it's an excellent tight narrow little road with great scenery. Runs from Bornio south down to Ponte di legno (and on the south side there's a turn off to a little village called Pezzo which has a resaurant that does fantastic raw beef drizzled in olive oil!)
