This is my victim. Its a YCC 801 case, imported by GlobalWin. It is a pretty decent case for cooling, with fan mounts down front and behind the CPU. Just aint quite cool enough for me.
This looked like a good, precision instrument for case mods (considering I couldn't find an axe anyways). This is what we call a mattock. It is a big chunk of pointy metal on top of a hunk of wood. Sorry for the technical detail, but I want you to understand all parts of this procedure. This tool has a freshly sharpened edge just for this operation.
You can see that the mattock goes through the case side like buttah. Smooth and easy... just be careful withdrawing it as you'd hate to mess up your carefully placed louvered vent hole.
Repeat the procedure as often as necessary to create a well ventilated case.
Gotta love that Craftsman guarantee, eh? Makes you real brave trying stuff when you have a real good chance of breaking something.