iTunes 6.0.2 is now in Software Update:
With iTunes 6, you can preview, buy, and download over 2,000 music videos and hit TV shows on the iTunes Music Store and sync your music and purchased videos with iPod to enjoy on the go. To watch purchased videos, you must have QuickTime 7.0.3 or later and Mac OS X 10.3.9 or later.
iTunes 6.0.2 includes stability and performance improvements over iTunes 6.0.1.
Note: After purchasing music from the iTunes Music Store with iTunes 6 or later, you will also need to upgrade your other computers that purchase music from the iTunes Music Store to the latest version of iTunes.
The most visible change to iTunes is the MiniStore, a panel that appears below playlists, showing items from the iTunes Music Store. This feature can be turned on and off using Show/Hide MiniStore in the Edit menu or via a new button at the bottom right of the iTunes window. This feature is "on" by default.
QuickTime 7.0.4 has also been released:
QuickTime 7.0.4 is an important release that delivers numerous bug fixes, support for iLife '06, and H.264 performance improvements. This update is highly recommended for all QuickTime 7 users.
QuickTime Pro Users not previously using QuickTime 7 will lose QuickTime Pro functionality without purchasing a new key.