On Fri, 30 Jan 2009 03:35:06 -0800 (PST),
wrote:

fully Secure means every user have own log in..

Unstall RADIUS server for authorization and authentication. WPA-RADIUS
will also deliver a unique encryption key for each session and user.
http://en.wikipedia.org/wiki/RADIUS

Bandwidth control

http://www.etinc.com
http://en.wikipedia.org/wiki/Bandwidth_management
Bandwidth management is often built into the wireless router.

Access control

See RADIUS server.

You also forgot authentication, traffic shaping, traffic monitoring,
user accounting, user monitoring, abuse detection, abuse management,
abuse mitigation, tech support, troubleshooting assistance, network
management (SNMP), key management, interference detection, etc.
Basically, you're building a system very much like a wire line ISP,
with the added bonus of an unreliable method of delivery.

plz provide the neccessary product information with Rates.......

You're over your head. Please find a suitable network consultant that
can advise you and design a suitable system. There's more to building
a "campus" wi-fi system than just buying a bunch of boxes and wiring
them together. You're not ready to specify any products yet.

Some reading to help you ask better questions:
http://802.11junk.com/jeffl/crud/Intel%20HotSpot%20Guide.pdf

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558