For a while I've been searching about that project.
Planning to build something like that; http://www.youtube.com/watch?v=Ele4YWKNaWM
Apparently what I need is MSGEQ7 chip for analyzing the spectrum in 7 different range; A demultiplexer, since I'll need a lot of output to run many LEDs;
One more thing that I need is having the audio signal in. I don't know what this input socket for 3.5mm jack is called but I believe there must be a type of component to place on breadboard, right ?
Basic components aside, do you think I might need any other specific component or do you suggest any thing before I start ?