Hi SpeckyTecky
While you consider your Wireless choices, please be aware that MeruNetworks can also offer a great solution to your problem. Meru Networks offer a single channel architecture which removes the need for channel planning and reduces the possibility of any deadspots in your buildings.
Further to this Meru handles high client denisty extremely well through its Fair Airtime method and we can expect a classroom of laptops to log in to the domain in close to 1 minute. We have a demonstration suite which can show this and also how Meru compares against Aruba and Ruckus under similar classroom tests.
You are more than welcome to see this demo suite as well as some case studies on Meru
