I have been looking for an easy to use, informative PIX (TCP, UDP, SNMP) syslog program for a couple of years now. Decided to check out Kiwi software again and found the latest release (Sept. 6th) of Syslog Daemon has everything I have been looking and is very nice for the price. (It's free). Also, check out RnR's software. It generates reports and charts from the data generated by Kiwi. It's free also!
I do not work for either company.... just sharing information.
Good Luck!
Russell
http://www.kiwisyslog.com/software_downloads.htm
http://www.reportgen.com/downloads.htm