I did this to a friend of mine's Lian-Li PC-7. Sorry about the crappy pictures. I added an 80mm fan to the top and an extra in the back. I was going to paint the fans flourescent blue, pop a uv-cc inside (it's flourescent plexi), and put a window in the hard drive but I didn't have time. I might do that eventually. I'm proud of the cutout. There ain't nothin' a jigsaw, nibbler, and round file can't do.