Trip planning assistance

I am planning a trip for May,2012 I will be flying into Paris and then would like to take the TGV to Switzerland. I want to visit Zermatt and St. Moritz ending my trip at Lake Como. I want to take the Glacier Express and Bernina Express. I would appreciate any help in planning this trip. Thank you

Hello iwantotravel, and welcome here! You have selected a really nice route. Just enter your destinations in the timetable to plan your transfers. As for tickets: I would recommend to look into a 3-day Swiss Flexi Pass to reduce the costs. It allows free traveling from where you enter Switzerland (probably Basel or Geneva) all the way to Zermatt, the Glacier Express to St. Moritz, the Bernina Express to Tirano and the bus to Menaggio or Lugano - Chiasso in the Lake Como area.