Installation in the face.
Pretty easy.Take off the case, then just push the HDD, wires, and LED and all through the bottom of the case(Like it would normally mount), then pull the wires and LED out of the front.
Place it back in the bottom half of the case, holding the wire and LED up, it should stick upward out of the case, and you'll be able to slide it back and forth a little.
Now you want to drill your hole for the LED. I chose the middlemost point in the case(which convieniently is where the gap between the DVD-rom and the Controller ports are in the innards.
Push the LED into the hole, and then the reset/eject buttons. Flip the top half back on, and put the screws back in. Viola... your done.