Good idea, but keep in mind that you will have to cool down the computer and the server!
+ sliding tray is weak, that means no heavy stuff on it, either no pushing and on...
another idea, you could make your LCD too rise from the desk when u turn your comuputer on
I'm broke all I have is a crt I couldn't dream of an lcd right now. And for the cooling I am going to put acrylic on the front of the cabinets with intake 120's on the bottom and probably a 250 exhaust fan at the top. The sliding tray is mainly going to be for a keyboard and mouse.