Its a joke if you dunno to clean ur Cabinet .... Its really that easy .....
This is the cleaning kit i use
--> A hand blower ...costs less than 100rs
--> A Brush with soft bristles
--> A Washed soft dry cloth .....
--> Colin [spray for the outer sides of the cabinet and monitors]
-->Gloves [optional]
No sharp objects should be used while cleaning
1.Clean the inside components like motherboard ,gfx cards , fans etc using the blower and brush [very light touch] to dislodge the dust .....
2.Use the cloth to wipe out the dust on the inside and outsides of the cabinet
...