gdm
Install GDM2 Setup Ubuntu 10.04 LTS "Lucid Lynx"

GDM2 Setup is a login interface management utility for the new GDM. Allows for wallpaper setting, autologin option, prompted or userlist login, etc.
How to change the login screen of Ubuntu 10.04 "Lucid Lynx"
Here is a way to change the looks of your login screen, it allows you to change the background, fonts and GTK theme using the Appearance Manager.
gdm2setup Utility for Ubuntu 9.10 "Karmic Koala"
Here is a login interface management utility to change your GDM. It allows you to set a wallpaper/picture as login background, change the autologin option, prompted or userlist login, etc.

