Hi Heath,
The blocking / shunning is a function of the sensor. so this can be configured on the sensor using the CLI. If you get into the "service NetworkAccess" configuration, you will see all the aprameters that are required to setup shunning.
The CLI for 4.x is documented here
http://www.cisco.com/univercd/cc/td/doc/product/iaabu/csids/csids9/cmdref/15285ch2.htm
On the other hand, the email notification is a function of the Security Monitor and not that of the sensor, hence email alerts can be sent only via the Security Monitor which is part of the VMS. CSPM is out of question as it does not support the newer version, 4.x, of the sensors.
Hope this helps,
Thanks,
yatin