Wow as a certified elecrician I am scared for your house. I would get those power wires in some conduit or outta the way. I use mc (metal clad) wire. I would recomend running 240volts for your lights if your ballast are capable. Ballast runs cooler, more efficient and you could run all your lights off 2 20amp breakers joined together. Besides the electrical I love the room, check out some of my threads for some tips. I recomend you use superthrive with whatever other regiment of nutrients you plan on using. Good luck hope you don't need any advice, but if you do I will have my two cents.