HIGH ALL!!!! ive finally started to gather material to start to build my grow box. im planning on running 6 plants with 2 plants per storage bin under a 600watt hps along with cfls (cfls will be used for veg). now my question is what should i use to build this box so its not a fire hazard? i was thinking about framing the box with 2x4s and then using drywall (green board actually so mold isnt an issue). does this seem like a bad idea? im just scared about using plywood for the interior. another question is wiring... im planning on putting a 20 amp in the box and running a new outlet dedicated for this. do you think 20 will be suffcient or no?