Chocolate Lover's Cheesecake

1 1/2 c  Chocolate wafers; finely crushed
    6 tb Butter; melted
   24 oz Cream cheese (3 pkg); softened
1 1/2 c  Sugar
    2 tb All purpose flour
  1/8 ts Salt
    4    Eggs
    4 oz Semisweet chocolate; melted 
  1/4 c  Milk
    1 ts Vanilla
    1 oz Semisweet chocolate
    1 ts Butter

Crust:

In a bowl combine chocolate wafer crumbs and melted butter. Press
crumb mixture firmly on bottom and 1-3/4" up sides of a 9" springform
pan. 

Filling:

In a large mixer bowl beat cream cheese until creamy. Combine sugar,
flour, and salt; stir into the cream cheese mixture. Add eggs all at
once. Beat just until combined. Do not overbeat. Stir in 4 oz melted
chocolate, milk, and vanilla until combined. Turn into crumb-lined
pan. 

Bake in a 325°F oven for 60 minutes or until center appears set.
Remove from oven; cool 15 minutes. Loosen sides of pan. Cover and
chill at least 2 hours. 

In a small saucepan over low heat melt 1 oz semisweet chocolate and
butter. Drizzle in lattice design atop cheesecake. Chill until
chocolate is set.