track foreign key constraints through database hierarchy

A relational database may have table B having a foreign key constraint against table A and table C having a foreign key constraint against table A.
If I want to delete data from table A I must delete from table C then table B then table A.

Is there a way of finding all the tables dependant on a certain table within the hierarchy.  I was thinking of a recursive CTE using system tables, but am open to any suggestions.

Any solution would need to work with SQL 2005.