im looking to build a led light bar for my dj business and im not sure how to even start. i have a basic idea of what i want. basically i want to do a bar that contains 6 10 x 20 arrays each a different color, and have each color be sound active based off of audio frequences. is this even possible to build? could someone either tell me i zapped myself to much or if its possible can you give me a push in the right direction? i know power is the critical thing when dealing with led arrays, would an old pc power supply work? i was wanting to use 10mm high output leds. any help with this would be greatly appreciated