Debian as multimedia system - startup and shutdown

[Meir Kriheli <mksoft@netvision.net.il>]

Hi,

I'm setting up a computer as a multimedia center using Debian (Sid).

The machine is connected to the TV for display and to the receiver for sound. 
I have a wireless keyboard/mouse to access it. It'll serve as DVD/CD/MP3/Ogg 
player.

I have no problem setting it up and using it, but the rest of the house hold 
(actually my wife and our 2 dogs :-) have problems starting/shutting it down.

Is there a way to log in and start a X session (I prefer not to use KDM/GDM 
etc. I know I can use them-at least KDM), and when exiting the session 
shutdown the machine ? 

I'm going to use WindowMaker on that machine (less resources).

Thanks
-- 
Meir Kriheli