Looking for helping with user management system, password reset, etc.

[HGeneAnthony]

I'm working on a page and I need to create a user management system.  However, it seems like a rather involved project by itself.  I need a way to add users, confirm user has correct email address, use captcha, a password reset system, user management, etc.  So many sites have user management systems I have to wonder if there's pre-made, drop in systems I can use already.  Is there any system people use here to manage their users, etc.?

[trq]

I'm not sure anything like a drop-in user manager would be feasible really, there's just too many variables within an applications design. Having said that however, a good framework should provide allot of the necessary components, Zend framework for instance provides Zend_Acl & Zend_auth which can be used in combination to build quite complex user permissions systems. The other functionality you speak of (crud) would of course still need to be developed.

[HGeneAnthony]

Actually that was pretty helpful.  I currently use CodeIgniter but they don't appear to have anything.  However, I use Zend for their Lucene search engine already as a dropin.  I can probably mix this in the current system.  Thank you for your help!