If you are looking to mod your PC, a pyramid PC case mod such as this one not be a bad idea after all. You might even be able to sell bunch of these as pyramid-scheme business too.
1- Drilled and installed 2x 80mm fans on each side of the case for better air flow. 2- Installed Sound Sensitive Cathodes in the bottom of the case with sensitivity control knob at the back of the case. 3- The 3.5 pay at the top of the case has been modified to fit the 500GB WD hard drive instead of the