I haven't tried this yet but only 'cause I haven't gotten around to it. Will be posting a LOT more too.   

1 1/2 c chocolate wafer cookie crumbs
     1/4 c butter or margarine -- melted
     24 oz cream cheese -- softened
  1 1/2 c sugar
       4 eggs
     1/3 c kirsch or other cherry-flavored liqueur
       4 oz semisweet chocolate
     1/2 c sour cream

Combine chocolate wafer crumbs and butter, mixing well; firmly press into bottom and 1” up sides of a 9” spring-form pan.  Beat cream cheese with electric mixer until light and fluffy; gradually add sugar, mixing well.  Add eggs, one at a time, beating well after each addition.  Stir in kirsch, and mix until blended.  Pour into prepared pan.  Bake at 350 degrees F. for 1 hour.  Let cake cool to room temperature on a wire rack.

Place chocolate in top of a double boiler; bring water to a boil.  Reduce heat to low; cook until chocolate melts.  Cool slightly.  Stir in sour cream.  Spread chocolate mixture evenly over top.  Chill thoroughly.  Garnish with whipped cream and maraschino cherries with stems, if desired.  Yield: 10 servings.