QuickTime Alternative will allow you to play QuickTime files (.mov, .qt, .3gp and other extensions) without having to install the official QuickTime Player. It also supports QuickTime content that is embedded in webpages.

What's New in version 3.0.1:
• Added detection of Seamonkey 2.0 plugin directory
• Fixed PATH adjustment issue during uninstall
• If you currently have version 3.0.0 installed, then do NOT uninstall it, but just upgrade it with this version
http://www.codecguide.com/download_qt.htm

QT Lite 3.0.1 - a trimmed down version of QuickTime that contains only the essential components needed for playing QuickTime content that is embedded in web pages.
http://www.codecguide.com/qt_lite.htm