Am I the only one who was waiting for this update before upgrading to Leopard? Currently downloading the update, if all goes well I'll be enjoying Leopard in a couple of hours, can't wait 
http://www.adobe.com/support/downloads/detail.jsp?ftpID=3816
quote from adobe.com :
Adobe Premiere Pro CS3 3.1.1 update
The Adobe® Premiere® Pro CS3 3.1.1 update includes Mac OS X v10.5 (Leopard) compatibility updates and important bug fixes. It is highly recommended for all Adobe Premiere Pro CS3 users.
http://www.adobe.com/support/downloads/detail.jsp?ftpID=3816
quote from adobe.com :
Adobe Premiere Pro CS3 3.1.1 update
The Adobe® Premiere® Pro CS3 3.1.1 update includes Mac OS X v10.5 (Leopard) compatibility updates and important bug fixes. It is highly recommended for all Adobe Premiere Pro CS3 users.