If you have come to the point where rackmount chassis have become an option, then I would highly recommend you take a look at some of the many options available from InWin. While InWin has built some incredible consumer chassis over the past few years (including the DFrame and XFrame), the build quality of the rackmount series is equally as impressive. In my recent expansion, I went over several rackmount options before landing here with this InWin R400.
With the optional toolless bay devices, drives are easier to manage, and the locking front panel and chassis intrusion switch keep unwanted hands out of your pc. While building this machine from the ground up in the InWin, I was unable to come up with any issues that threw me off; in fact, everything went rather smoothly.
The need for rails to mount and manage your systems comes along with rackmount chassis. These too differ from each manufacturer in length, and quality. The InWin rails in my experience are some of the nicest and most complete units I have used. These rails include easy roll ball bearings that make a 100 pound chassis full of gear feel weightless. They even lockout when the chassis is pulled out of the rack.
As stated at the beginning of this article, the R400 can be had for a mere $129.99 as a bare unit. You can also throw in the optional toolless bays if you so feel, but don't forget to grab a set of the rails from InWin, as they are pure gold.