[Catalyst] User account registration login

[Tom Printy]

Hello,

I was wondering if there is a user registration/account creation/login
module for catalyst.  While I understand that all login systems are
different I was hoping that there was one that I could extend to meet my
needs instead of rolling my own from scratch. Furthermore is there a
directory of open Catalyst projectes out there other than the Catalyst
wiki?

Thanks
-Tom Printy