We'll start the installation by looking at the ultra cool and useful tool-less mechanism used on the hard drives and the optical drive. The concept is extremely simple, but it works very well. As seen in the images below, there are several rubberize thumb screws that you attach to your drives. You can tighten them further with a screw driver, but that is not necessary.
Repeat the process with the optical drive. Black rubberized screws are for the hard drives, while white rubberized screws are for the optical drive.
For the hard drives, simply lower the drive into the cage, so that the two screws on the one side of the drive drop into a slot on the bottom. The rubberized screws are just the right distance apart to grip the cage and hold the drive in place. Then hinge the cage's top cover back down in order to catch the screws that are now on the top edge of the drive. The drive is now locked in place and has some decent vibration isolation built in, too. Extremely simple, effective, and quick!
For the optical drive, you guide the screws into slots in the tray and slide the drive into place. The rubberize screws hold things in place with a bit of resistance, but a clear plastic lever locks things down to make sure nothing moves. Trying to shake the drive loose didn't make anything happen. This design is about the best I have seen. No tools needed, minimal effort required, secure installation, and vibration isolation for reduced noise!
The balance of the installation went about as smoothly. An ECS GeForce 9300 motherboard, 2GB of Crucial DDR2 memory, a 750GB Seagate hard drive, an ASUS DVDRW, and an Intel dual core CPU were loaded into the case. Not a power system, but reasonable components for an ultra quiet HTPC setup. All of the cables reached the required headers with ease, the front panel connections are well labeled, and all hardware fit together nicely.