I'm looking to start growing and I need to be discrete. I have a design for a grow box and I have one question that needs to be answered. I am going to purchase computer fans for the intake and out put and i am just wondering how do I connect these fans to a power supply? I mean, they dont have a regular three or two pronged plug that goes into the wall do they? so what do/how do i connect it to a power source? any help/input/ideas would be awesome thankks