Have you thought about the T5 HO lighting? That's all I use. U can get a single bulb fixture or one that has up to 12 bulbs. Mine is a 8 bulb w/432 watts of power. Works perfectly for Auto's and it works ok for Photo's as long as you keep them shorter...
So your wanting to splitting the 228 total watts into two grow rooms? Probably not a good idea...I'd keep the 228 watts in one closet...Better yield and better bud...
Also, you may want to keep the 5000k bulbs and exchange the 2700k for a 5000k or something...Auto's love the 5000k light from start to finish
If ya need anything just ask.
Good luck w/your grow and as soon as u get seed, and get them going, do you grow here and we'll help you along the way.
Ripster