1. Preheat oven to 350°.
2. To prepare crust, combine the first 4 ingredients in a bowl; toss with a fork until well blended. Press crumb mixture into bottom of a 9-inch springform pan coated with cooking spray. Bake at 350° for 8 minutes. Cool on a wire rack.
3. Reduce oven temperature to 300°.
4. To prepare filling, place cream cheeses in a food processor; process until smooth. Add 3/4 cup granulated sugar and next 4 ingredients (through pumpkin); process until smooth. Add eggs, 1 at a time; process well after each addition. Pour cheese mixture into prepared pan. Bake at 300° for 50 minutes or until almost set. Turn oven off; partially open oven door. Cool cheesecake in oven 30 minutes. Remove from oven; cool on a wire rack. Cover and chill 8 hours. Sprinkle with Demerara sugar just before serving.