desktop display manager

[bruce]

Hi,

Looking over ubuntu/display managers. Used to have centos, which was
old gnome. The basic ui/look was a top horizontal menu of a few items.
It also had a left side/dropdown of sub menu items. At the same time,
it had a bottom list of icons for the "apps" that were minimized. As
well as the section of the 'child desktops" a user creates. And of
course, the bottom menu could be moved to one of the sides..

In researching ubuntu display managers, I've seen different look/feel
for ux, but haven't yet seen screenshots to check out.

Anyone have any sites, or display managers you use/like?

thanks