Giving Application/Service Accounts EXEC Permissions

In SQL 2005, is this an acceptable (prefered) way to give an application account EXEC permissions for sprocs and funcs in a specific database?

CREATE ROLE db_executor
GRANT EXECUTE TO db_executor

And then of course assign my user to this role on the database level.

I am trying to get away from adding exec to every sproc "manually" and then of course also having to add exec for any new sprocs that get added into the database.