A couple days ago I reformatted my new MacBook, setup an Administrator account and two user accounts. After setting all the preferences, etc in the Administrator account I was annoyed to find a few things that were configurable by the user accounts, such as Bluetooth discoverability, Bluetooth On/Off, etc. Is there any way in OS X to administratively manage/lock down various things in the system? Isn't there any way to automatically configure accounts with pre-defined system settings, etc, as is possible in Windows through Active Directory and Group Policy Objects, OUs, etc??? This seems like a "must have" for OS X, or any good OS for that matter.