I'm not sure I follow. Are you planning (or hoping) to send videos via e-mail as marketing? If so, I don't think that will be very effective considering you can't embed a video into an e-mail (unless you're using an Html e-mail but this won't work in Outlook or many other e-mail clients).
So you would have to attach it and I'm not so sure a potential customer would notice the video or want to watch it.
I think if you want to do e-mail marketing (which, to be honest, I always advise against; companies that do this get blacklisted in my inbox and go right into my spam box), I'd suggest a simple html page with very basic designs (make sure to test in outlook 2003 and 2007 (different rendering engines), thunderbird, gmail, etc).