You're right; there isn't much backpacking done in the Alps, but a lot of day hikes of varying difficulty. One guide service I can recommend is:

http://www.cwadventure.com/trips/europe/...926426754275336

This is their Mont Blanc circuit trip. With CW Adventures, you do long, sometimes challenging day hikes, and stay in nice hotels. All meals provided, except one lunch and dinner, and local guides.

My wife and I will be doing our tenth trip with them in May, to Ireland. It's an excellent outfit.

If you want to do some mountaineering, I can recommend the International School of Mountaineering, in Leysin, Switzerland. I did the basic mountain course with them. English speaking guides and management.

http://www.alpin-ism.com/sitemap.cfm