Websites-Database/Ecommerce (Dynamic)

Hello,

I need to design a website that will have the capacity to display photos, and video. The back office must be user friendly for my client to be able to upload all pictures and video himself. The site must be very high end and look very professional. There must be a secure payment portal. We will need a weekly html email news letter, so we will need a easy template to add and customize the email that will be sent. The video must be able to be downloaded in different formats, and when it is displayed on the website, we want to be able to use the video in a flash format, and when the mouse is passed over it, clips of the video will be display to show a preview. Once the video is selected, a new page will open with the video in the main window and other video selections must be on the side for other selections if the person would like to view other videos. The photos will be displayed in a gallery that will be flash animated. I would like the main photo to be displayed and the rest of the selection be visible from the side or bottom. Once the mouse goes over the selection, the image will display in the main window. I would like the site hosted on a professional hosting server that can handle alot of traffic. Estimated 5-10 thousand members. This is the general idea of the site. There are other details I am sure are being forgotten, but in general, this is the idea.

Thank you, and serious designers only.