1 month to build the models
1 week to animate
36 hours to finish animating, render and finalize

3DS Max 9 with Mental Ray
Adobe After Effects
Photoshop
Macromedia Flash

There is a higher resolution version available on youtube at

http://youtube.com/watch?
v=D2rnA3WEKuE

If you want to download it, there are several video tutorials on how to do that.

Enjoy.