Data center design! What is ACE

Hi Everyone,
We are planning to have a datacenter. decided to buy 2 core 6500 series switches. what exactly is ACE? i understand it does loadbalancing. but then why wd not one use CSS instead on ACE. if we use ACE , can we eliminate the need of FWSM module. i read ACE has lots of security features. also it does web caching.. i may be wrong here.
So if we only have ACE in 6500, do we still need FWSM and some web caching engine (WASS). please also let me know some important features of ACE-Thanks

The ACE module is a loadbalancer that should eventually replace the CSS and CSM.
It comes with some firewall features but not all of them. Some users have enough FW features on the ACE module so they don't need the FWSM.
Others still need the FWSM.
Depends on what you need.
Finally, the ACE module does not come with caching option. Only the ACE Appliance - c4710 - has the caching and optimization features.
Gilles.

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