LED Arduino Music Visualizer - Construction

This video provides a quick look into how the visualizer is constructed.

Here's a link to a description of the project with schematics and Arduino source code. I decided to forgo an in-depth writeup of the build process as I feel the schematics and source code provide most of the important information:

[MrHamsterbacke]

Very Good Video! But i habe a Question: You usw the TLC5940 LED-Driver but in the site auf TI are more then one versions oft this. Which is the right one?