Tech Republic article and tool to assess future bandwidth needs (a free membership is required to access this article):
http://techrepublic.com.com/5100-6313_11-5206594.html
More about power over Ethernet:
http://www.poweroverethernet.com
How users share 802.11 channels:
http://www.nwfusion.com/newsletters/wireless/2003/0929wireless2.html
Cisco Aironet AP EAP Authentication with a RADIUS Server:
http://www.cisco.com/en/US/products/hw/wireless/ps4570/products_configuration_example09186a00801bd035.shtml