I have a challenge presented before me, and that is to centralise authentication. Period.
That's because me and my big mouth said I like LDAP, and anything can authenticate against it. I have pretty much every type of desktop here, Macs, Windows XP up to 7, and number of Ubuntu and Fedora based distro installs.
I have no problem going through all the configuration work. In fact that should be pretty fun, I just want some recommendations on which implementations I should be looking at.