Hello everyone, I recently posted about making a color organ, in which I was going to use a circuit to process analog signals. Since then, I have decided to move in a new direction of a digital color organ. I would really appreciate if someone with more experience than me could give some advice and oversee my build to make sure I don't blow something up haha. I was inspired by this build. This is my plan so far. Using a Jack on my computer to split the audio so that I could send the signal to my speakers, as well as to a program called Max Max will do all the processing of the audio data, and send the information over serial to an arduino microcontroller. I am planning on running 6 lights on my color organ (2 low, 2 mid, 2 high), so I figure I will need 6 pins that are capable of sending a PWM signal. I've never worked with an arduino leonardo, but it says it can output up to 7 PWM signals. 1. Anyone forsee any problems with this microcontroller and/or can suggest using a different one? Now becomes the part where I am lost. I would like to use 6 high power led's such as these. They are the same led's that were used in the build I was inspired by. Unfortunately, the build uses heat sinks I was not able to find. I found these led's, but I don't know if that helps my cause at all. 2. I would really appreciate if someone could help me find a heat sink setup to work with these lights. They will be spaced out approximately 6 to 8 inches apart each. Also, I would like to add one of these optical lenses on top to more evenly distribute the light throughout my room, so a heat sink setup that would allow those to fit would be nice. 3. Lastly, I need help finding out what driver I should use to power these bad boys. The original build used this driver. Compared the the other drivers on the site, this driver was muuuch more expensive. If someone could explain why this one is necessary, then I guess I will go with this one, but I'd rather not spend money on something that isn't necessary. (I am not opposed to having all of the lights the same color if that has something to do with it.) I know this post is kind of lengthy so I really appreciate your guys' help on this one! Thanks in advance!