Chocolate Holiday Truffles

Melt chocolate in large microwave-safe bowl in microwave oven on HIGH 2 minutes or until chocolate is almost melted. Stir with wire whisk until chocolate is completely melted. Add cream cheese and vanilla; stir until cream cheese is melted and well blended. Cool to room temperature. Gently fold in whipped topping, blending well. Refrigerate 2 hours or until mixture is firm enough to handle. Shape chocolate mixture into 1-inch balls and place on wax paper-covered baking sheets. Refrigerate at least 1 hour or until firm. Roll in desired coatings, working with a few truffles at a time. Store in a tightly covered container in refrigerator.