a lil plugin to include apples quicktime javascript library in the header of your template.
you will also need the text-control plugin to disable wordpress character encoding on posts which will use the javascript or else all " or ' will get html treatment.
just embed a script like this:
<script language="JavaScript" type="text/javascript"> QT_WriteOBJECT( 'Movie URL', 'MovieWidth', 'MovieHeight', 'ActiveX Version', 'First Attribute Name', 'First Attribute Value', 'Next Attribute Name', 'Next Attribute Value', ...repeat attributes as necessary 'Last Attribute Name', 'Last Attribute Value' ); </script>
more info on soundscreen.com
and disable character encoding for this post (or formatting).