There isnt much of a reason not to so I would just add em all.. I build CMS sites which requires all the components your talking about and if you ever want to use drupal or wordpress you will need it.
http://www.honeyd.org/archive.php/04/05/0102.html
Ive always been amused by the thought of making 30 or so honeyppot, a darknet, and a few vms and do a hacker showdown with my friend...
I would be it is some mysql login system... you could also take the easy way out and configure the .htaccess to require user/passes for certain folders... like mysite.com/users/remezcle and remezcle would need a password for that folder