Create showcase/preview for new website design

hi we need to make a preview html page / flash page, that will intrigue our visitors to enter our newsletter and return back to our webstore once we go live. The front page design is basically finished and can be seen here [login to view URL] so what we imagine is a nice "teaser" that will make customers interested in comming back to visit the site when it goes live. There should be some zoom in on webshop logo, products displayed, menu items etc.. you get the idea. if not, please ask. This is a quite urgent project, so a realistic timeframe please. thanks.