There has been some great grows with floros alone. I'll post a couple below for you to check out.I think you will be impressed. Just be carefull with moving it, Iv'e heard of plants turning hermie because of stress from going inddors to outdoors but it sounds like your best option at the moment.

http://www.overgrow.com/edge/showthread.php?t=561112
Crowman Reviewed by Crowman on . Will This Work? Where I live there is still good sun and warm days so I can get about 7 hours of daylight sun. My indoor lighting is only two, 48" fluro tubes, one cool white, and one full spectrum sun, at 40 watts each. I know I need a better light system, something more like a HID system, MH, or HPS lights, but in the meantime until I can afford them can this work, placing them in the sun when it's available, and then when the sun is done for the day supplement the lights indoors with these fluro tubes? Rating: 5