we have a 36" gateway destination monitor on our cabinet at work. i use the term cabinet loosely though, because we never really finished it. for something that large, you should definitely go with a showcase style cabinet, where the control panel is on a separate pedistal that can be back away from the monitor. our's is two separate pieces so we can move the control panel up against the monitor when not in use, then when we want to play, we pull it back so that there is at least a foot between the back of the panel and the monitor.
i dont have any plans, we were kinda just making it up as we go. i remember seeing someone had dynamo showcase cab plans here somewhere, but they would have to be modified because they were for a smaller monitor i think.