Currently at work we have four or five servers, spread all over the building. All but one are in standard ATX cases (I believe the other is in an EATX case, but I think the motherboard itself is actually ATX). Recently there has been talk of moving all of the servers into one dedicated room for easier maintenance, and I was asked if we should consider a rack mount system. I honestly have no idea if such a thing is necessary, and if it were, what I should be looking at buying. Can anyone point me toward a "racks for n00bs" guide, or offer some advice? I'd appreciate it.