Well, I've wanted to do it for a while now, I'm hoping some of you have either done it or do it now. I would like to know how much it would cost, how hard it is to do, and if I can use my computer to play the songs or do I need to use a cd player and stuff. I only need a 10 km radius maximum and it's only for fun. I would love to do it though, so help me out guys. Thanks.