let me clear up the game server
the overall effect i am looking for (in the game server, not the carputer) is that i wire a custom plug (1 plug with keypad,mouse,and screen wired into it) so that you can't plug normal keyboards into the computer, then make sure it will not boot without a keyboard. (i am also going to make sure there is NO FORM of remote access to the computer)
the final effect is i can put my game server anywhere i want at a lan party, plug in the interface, boot and start the server, unplug the interface, put it in my pocket and walk away. there is no way for someone to control the computer (and through that the server) without my interface.
i am also going to make a breakout cable to go from my custom plug to standard plugs (and maybe one that goes the other way so i can interface with my game server if something happens to the interface.
the security thing does not apply to using it for my carputer so it is not relivent here i just thought i would clear up what i ment by secure. several of my friends and i are going to be putting in systems in our cars soon and i would also like to be able to use this to be able to plug a TINY keyboard mouse and monitor into the computer from a single plug without having to get to the computer (plan on hidding the computers away in simi hard to access places)
and as i was typing this i got another idea, wire the powerbutton to the interface so that you can not even turn the computer off without the interface (could still unplug it though :( )