We have a Cisco PIX firewall in place at work. Currently we are using kiwi to gather the FW logs and send them to a Windows 2K3 server. There is soooo ( about 1.5 G per day of text files ) much data that it is impossible to look through these logs manually. What to do? Any suggestions?

What are you guys using out there to "go through" or analyize your FW\router logs?