Try the following tools/links which allows you to search for hardware/software types that support your requirements.
a good tool is the 'product advisor' located at the link below: (enter your requirements and it finds solutions for you)
http://www.ciscowebtools.com/productadvisor/
also, use the 'tool index' to help find a tool for your search needs:
http://www.cisco.com/en/US/products/prod_tools_index.html
also, the 'solution finder' link:
http://www.cisco.com/pcgi-bin/finder/msbsearch.pl
(if you post the exact requirements, if you know them, we'll help identify a more precise product for you)
