We moved our NYC datacenter to a new colo facility last month. We hired a moving company that specializes in moving racks of equipment. They did a great job. Here's a timelapse recording of them packing everything up.
These are the computers that run Q&A websites like ServerFault.com (system administration questions) as well as 125 others! Check 'em out!
Morgen Industries are pros. Used them once and would go back if I ever have to move a server room again.