Syslog logging to a Database
Planning to move to a centralised logging system using a database. Mainly so I can keep log entries around for at least 6 months, plus to make it easier to find and sort entries with one of the php based log-display systems.
Couple of methods avaliable that look interesting: Syslog Logging with PostgreSQL HOWTO and Centralized syslog-ng to Mysql.
Will have to investigate further.