This is a big video tutorial I just made on making a streaming video ad.
Using Premiere to mix the footage, creating a graphic overlay in photoshop, using green screen effects & outputting through premiere as a FLash flv file.

Using flash 8 to add on complete actions to the flv file, exporting as html.

It's a wopper but it's worth it.

HOW TO MAKE A FULL VIDEO AD BANNER