I HAVE SEEN IT DONE WITH A PSone SCREEN!!!!
Greatest use of the screen I have ever seen.
You use a VGA interface too. It is really easy to do, someone stopped by the bit-tech forums and told about it. Unlike some people we know this guy really does know how to do it, and he has pics to back it up. He requested that you visit his site and just link to the guide there. It is awesome and I am going to do it in a month or two after I finish up some of my current mods.

http://www.kickassamd.com
He just set up the site and it has had some tech difficulties so it may be up and down.
If it is down just email me and I will go dig up some pictures from the other forums.