Combine 36 finely crushed vanilla wafers, 1/4 cup sugar and butter. Press evenly over bottom of 9-inch flan or springform pan. Arrange about 36 whole wafers around the edge of pie, overlapping slightly and press into crumb mixture. Bake in preheated oven at 350F for 8 minutes. Cool.
Beat cream cheese, sugar, lemon juice, sour cream and vanilla together. Pour into crust. Arrange strawberries over top of pie and drizzle with melted chocolate or brush with jam. Remove from pan and serve.