Welcome to the forum, sorry if it seems like we jumped your thread. Potroast has it right, he already know that. I would recommend, to everyone that is thinking about doing this, you read How To Get A Harvest Every Two Weeks, a thread posted in this forum by Al B Fuct. Ignore all the bullshit argument about light. Then read Widows journal, the one with all the pictures. I'm working on this kind of set-up right now. If I had read his entire journal, when I was at the stage you are now, I could have saved myself about 6 months. For the lights, don't get 400 watt for the flowering room. A 400 watt will put out about 43000 lumens. A 600 watt will put out about 95,000 lumens. 50% more energy used, 100% more light. Since you can place a 600 watt air cooled fixture about 2" higher than the 400 watt or about 14" above the plants you will get a better yield per plant. Use the 400 watt for the two mothers. They will be vegging, and the 400 will be enough for that. Flouro's will work fine for clones while they are rooting, because you can put them closer to the plants.
Read some of the information on cloning, and begin trying to clone about a month after your seedlings have sprouted. That is the key to getting this type of setup operating. Potroast is a master at this.
Well... like I said, welcome to the forum. VV