When you have a web site
There's got to be a module for that...
http://drupal.org/project/mode (6 only, lots of configuration)
Report-back to this thread:
Admin switch to make site read-only http://drupal.org/node/25584
2006 July 10: Drupal: Enterprise Edition | Nick Lewis: The Blog
Nick Lewis on needs for moving data from test to live, with Bér, MerlinOfChaos, others weighing in.