Protostar has a countdown timer to point to your main site launch day, a background fullscreen slideshow that runs smooth and elegant, or you can choose a YouTube video and use it as a background instead the slideshow.
Demo:
http://themeforest.net/item/protostar-coming-soon-countdown-fullscreen-page/6862359
Rapidgator download:
http://rg.to/file/a14bcc26fc7a6bea1adfc0042667b371/protostar_1.0.rar.html
Turbobit download:
http://turbobit.net/zdkbamz3wyzv.html
Zippyshare download:
http://www48.zippyshare.com/v/8829221/file.html