Do any of you guys use or have a server rack enclosure at your home? I'd like to take the 3 to 4 mid tower chassis systems (the size of an Antec P183) and place them all inside a rack in one location next to my desk. Some of the options I've researched so far seem very expensive for a large piece of metal. I don't need anything super fancy, but thought that a rack with a simple door might be nice to cut down on some noise and consolidate some systems. They don't need to be on rails, but a simple shelf would suffice. Any recommendations?