High-Tech. Countdown

Inside:
2 video files + 2 video files (Alpha)
Countdown video from here

A countdown project (After Effects CS4) is layers composition:

1. Numbers (from 10 to 0)
2. Rotating circle
3. Background
4. Sound (you can get here:
http://audiojungle.net/item/countdown/2766304)

You can easily change the color of any layer as you like and replace the background to any video.