We are moving to a new building and I need to come up with a "design" for a new server room. We have two racks of servers (each about 1/2 full), and two racks of networking and phone gear. We will be implementing a hot/cold isle system. I have also sized the AC requirements, which looks to be about 2.5 tons. Of course anti-static flooring, dust filtration, and fire control need to be addressed. What else should I be considering? What should I avoid?