Updates: Quicktime, Java and GarageBand
Apple released an update for Quicktime. The update, 7.3.1, addresses an RTSP vulnerability that was recently discovered. Patch notes can be found here.
Another update, Java for Mac OS X 10.4, Release 6. This update improved reliability and compatibility for Java 2 Platform Standard Edition 5.0 and Java 1.4 on Mac OS X 10.4.10 and later. Patch notes available here.
And finally, GarageBand updated to 4.1.1 which adds the ability to make your own custom iPhone ringtones. Patch notes can be found here.