Zermatt

 OK - I'm heading to Wallis area;

- Jungfrau/Grindelwald
- Saas Fe
- Aletsch (Riederalp/Bettmeralp)

Then Livigno

Then Sud Tirol

Kind of touristy but probably pretty good riding. Three weeks again

 definitely go to the Wallis area! Best riding you can find in Switzerland and lots of trails to ride!
But the best stuff is always hard to find

i would even recommend you some other spots there:

- Rochers de Naye (Montreux)
- Villars sur Ollon
- Gspon
- Crans Montana
- ...

 Bont. I've made a commitment to go to the resorts I mentioned above because they are the one's who are asking to be featured in the trip but I would like to do more reading about these places you mentioned in case the schedule can be flexible (i only know Crans Montana). One thing I see is that Montreux is part of Portes du Soleil and the lifts go dark after Aug 31st. Is that the case (of course its a bit early for sommer 2012 schedule). I like having the suggestions from the locals to have the best ideas so thank you!

Also I am planning on checking out Ageri in Zug

 Bakersfield? Not in the cards as the schedule's packed. Plan is to go to Phoenix/Sedona/Taos/SantaFe; Williams Lake BC, Merritt BC, some Chilcotin multi-day alpine traverse; then back to Switzerland and Italy. It's a pretty full summer !