I will be moving into a new home where I will have two extra bedrooms to hopefully use for growing. I currently have very limited experience, so I would like to start out somewhat small by possibly putting couple lights in each room. I was thinking to start out with 2 400w-600w metal halides in one room for flowering and 2 400w-600w hps in the other for flowering. I understand being a begginer I am most likely going to have failure but I would eventually like to get a cycle going where I can harvest ever month or two. Is this possible with the setup i mentioned? Do you have a better reccomensation? Also, I have assisted friends with indoor grows so I am somewhat familiar with the concepts of controlling co2 level and air exchange and soil ph, but by no means an expert, so any information you can offer that you possibly ran into on your first grow is much appreciated.