If you are looking for wireless solution, here's one for you. I personally not using it yet but I really like their implementation design and might apply this to work.

The product is "Xirrus Wi-Fi Array integrates 4, 8, 12, 16 or 24 802.11abg+n coupled to a high-gain directional antenna system into a single device along with an onboard multi-gigabit switch, WI-FI controller, firewall, dedicated Wi-Fi threat sensor, and an embedded spectrum analyzer to provide mmore than enough bandwidth, security and control to replace switched Ethernet to the desktop as the primary network connection - providing more coverage, bandwidth, and throughput in the industry on a per device and system basis resulting in 75% fewer devices, power, cabling, switch ports, and installation time than competitive offerings." (2009, Xirrus.com)

I was just looking for a wireless load balance solution and stumbled to this product. I would like to share this to my reader (especially administrators and geeks) to share their knowledge if they already implemented a similar wireless wide-network designs as shown here.

I will keep you posted if I have the chance to implement this in our network.

Thank you,
EM @ KING.NET