Here is an ultra clean 30 Cinema Display. I am the only owner and have always taken really good care of this beauty. It has the original box, manuals, power supply, and the display port adapter ($99 Value).
It was always used in my office. It still works amazing and looks great! If you want one a really good and well cared for Cinema Display this is it. If you want one that has been beat up and not cared for then please look elsewhere.