Some info on gdm and kdm in Ubuntu

When installing KDE and/or XFCE (Kubuntu and Xubuntu in Ubuntu) you may have some questions about gdm and kdm. Here is a good forum link with some helpful information.

Changing default from kdm to gdm

Another link on Ubuntu/Kubuntu/Xubuntu and the GNOME and KDE display managers,

How to Switch from Ubuntu/Xubuntu to Kubuntu - http://www.spotht.com/2010/08/how-to-switch-from-ubuntuxubuntu-to.html

Edit: 8-22-11

Some more on GDM and KDM.

How To Switch Between GDM, LightDM Or KDM In Ubuntu [Quick Tip] - 28 Jul
2011 - http://www.webupd8.org/2011/07/how-to-switch-between-gdm-lightdm-or.html