I just upgraded my network backbone to the 4507r switch using sup IV and netflow cards. I also upgraded my Internet and core routers to the 2821 and 2851 respectively. I will also be installing a ASA-5520 w/ csc-ssm-20 module. How should I proceed...

Can the asa-5520 (anti-x edition) be used as a IPS too? If so, how?

I am looking to install an IPS appliance on my corp network. Does the Cisco IPS 4240 stop P2P and IM applications?What about ASA 5520 IPS edition?