CodeCanyon - ForumerPro - Forum Software - RIP | 715 KB
ForumerPro is straight forward PHP and MySQL forum software. On an administrator account, you can easily create new forum boards which can be locked/unlocked. If it is locked, only administrators can post in them.
DEMO:
http://codecanyon.net/item/forumerpro-forum-software/5421439?WT.ac=new_item&WT.seg_1=new_item&WT.z_author=ethan_webster