Andrea,

Two great suggestions for Thai food are the "King and I" and "Thai Sa-On".

King and I is the fancier of the two but also the priciest, but the food is fabulous and guaranteed not to disappoint.

The decor of Thai Sa-On is a little simpler but the food is very good and the last time I was there, prices were reasonable. More traditional Thai setting.

Both restaurants are just off the downtown area. Restaurants in Calgary are quite busy these days and reservations are recommended.

Enjoy

Greg