Hey Nick,and Funk,
I've been growing for a long time and it's been my experience that any flour's are great for rooting and also vegging(to a cetrian point),but they just don't have the intensity for flowering.
I run three 600wHPS on a suncircle light mover(constently turning in a circle,one revalution every 5 minutes) in a 4'x4' tray.
My last harvest I had 4 purple kush's in 10 gallon containers with a CO2 generator,exhaust fans,circulation fans and AC,and I yielded just under 30 oz's! I couldn't have got that kind of yield with 100 flour's and/or cfl's!
Just tryin' to save you time and money, because sooner or later you WILL decide to upgrade,and when you do you should check out LED's. That is what I am going to use next as soon as I can get my hands on them.
Hope this helps, I just wanna be helpful!