answer:right-click on the folder and choose “get info”, then at the bottom of the info window you will see a lock icon. Click on it, then enter your admin password, then you will see access controls for your user profile and for other users; from there you can set permissions as you see fit-although the password will be your master login password for that account. Keep in mind that all admin accounts on that computer will be able to override that access in the same manner; the only other way in Mac OS X (without buying 3rd party apps) is to file vault your entire user folder (the master directory that holds your home folder, your user library, etc.). File Vault is accessed in System Preferences if you wish to go that route.