Heat oven to 425°F. In medium saucepan, bring water and margarine to a boil. Stir in remaining ingredients except eggs and cream cheese. Cook over medium heat, stirring vigorously until mixture leaves sides of pan in smooth compact ball, about 1 minute. Remove from heat. Add eggs 1 at a time, beating with hand mixer for 1 minute after each egg addition until mixture is smooth and glossy. Drop mixture by tablespoon or pipe from decorating bag onto ungreased cookie sheet.
Bake at 425°F. for 15 to 20 minutes or until puffed and golden brown. Remove from oven; cut small slit in side of each puff to allow steam to escape. Cool completely. To serve, cut puffs in half; fill each with about 1 teaspoon cream cheese. Serve immediately.