linux desktop managment

[Gregory Machin]

Hi.
I'm looking for an interface / way to manage a large number of Linux
desktops. They are mixed os , fedora and Ubuntu mostly.  We are using
likewise open to ma age user athentication . I need centralise package
managment and patching. I need to centralise deployment of printers ,
print servers are windows. Need to have control of desktop
configuration.

I have looked at spacewalk but it doesn't support ubuntu.

Any suggestions ?
thanks
G