Over at VoidedWarranty.com they review AMK Computer's Tune Up Kit.

The inside of my case is a real mess. Did an animal climb in there and build a nest? I am almost afraid to put my hand in
there!!! I could have sworn I saw a troll go in there. This computer case is not very big, and it looks as if it was built to hinder airflow. Notice the flat IDE and Floppy cables. Those bastards must be blocking a shit load of air. Well, that's all right, I have a feeling this AMK Tune up Kit will take care of all my worries.