1. A method of managing utilization of network intrusion detection systems in a dynamic data center, said method comprising: automatically providing a plurality of network intrusion detection systems, each being networked so that utilization of each network intrusion detection system can be based on demand for said network intrusion detection systems in said dynamic data center wherein said dynamic data center automatically provides said plurality of network intrusion detection systems by automatically provisioning said plurality of network intrusion detection systems from a pool of available network intrusion detection systems enabling automatic modification of a number of provided network intrusion detection systems based on the demand, wherein the automatic modification of the number is selected from increasing the number of provided network intrusion detection systems and decreasing the number of provided network intrusion detection systems; automatically configuring said provided network intrusion detection systems, at least in part by, receiving a monitoring policy and a plurality of monitoring points to be monitored on a network with any of said network intrusion detection systems; and automatically arranging the monitoring of said monitoring points using said network intrusion detection systems and said monitoring policy.