User Management

It would be nice if the user could define custom Roles (other than the native ones = Default, Team, Product, Budget, Administrator) and to define for each one of these roles, in a more granular fashion, the fields that each role can access/manage. For example, we do not want the Administrators to be able to see the Budgets but at the same time we need an individual or two (a cost accountant) to be able to access the Budgets (and Budgets only).