There are numerous ways out there to clean your xbox 360. You can by a cleaning CD like the one you use for your dvd/cd. Or you can super clean it by vacuuming the vent system in your box. I suggest you never open it to do so. Never use any water based solutions in the interior or exterior for that matter. The xbox 360 collects dirt by wind and settlement. To remove this dirt or dust simply vacuum through each vent and blow air until you don't see any more particles floating around. For best results you could buy a vent fan to keep the system cool and clean maintained.