One of the tools I use to help me wade through the mass of data that networking devices spit out is Splunk. Splunk is easily one of the most useful apps to run if you have to try and figure out what is going on with regards to firewalls, ids, network logging and anything else that will output to syslog.
If you happen to live in the San Francisco Bay Area you are in luck too, next week is the first annual Splunk User Conference and you can still sign up. I wish I could make it myself, especially since I live local to the event.
Splunk has really expanded the capabilities of the product but to be honest, the simple search and filtering to help me write better access control lists for firewalls is a huge time saver, just being able to do that quickly and efficiently makes it worth it's weight in gold.