Mattlock: To respond to one of your questions, I'm from the jigsaw school rather than dremel.
Along with the window in the side of my case I snipped away enough of the metal housing in the lower front of the case to accomodate a 92mm fan. I also cut a blowhole in the front plastic bezel with my jigsaw. It worked for me but I'm not sure if it would for everyone.
The jigsaw easily cuts through the plastic. The downside is that the blade's friction heats up the plastic just to the point of melting. As you move on, the plastic quickly cools, fusing behind you.
So, you have to make each cut several times and in the end you have a hole with hard molten edges. One could sand the edges smooth but I'm not that patient. I just covered everything with a grill and black fabric cover. A couple of 4-inch neon lights from Autozone looki slick glowing behind the cover.