"The Field Permissions module allows site administrators to set field-level permissions to edit, view and create fields on any entity."

Inline editing for fields. Still an alpha module at the time of this writing but I've used it and it works :) One handy thing you can do is create a view that has editable fields to get custom streamlined editing interfaces.

"This module allows you to attach tabular data to a node in Drupal 6 or any entity in Drupal 7." Data can be exported to CSV (D7).