I actually recommend using a mix of spectrums. For example; veg: use 3 6500k cfl's for every 1 2700k cfl. then in flower you want 3 2700k for every 1 6500k cfl.
if it helps ge has a t8 flouro called sunshine. it runs on 32 watts, you can get them in 4 and8 foot bulbs. they are 5000k witch is kinda somewhere in between the "red" and "blue" spectrum flouros. more blue for vegging, which is ideal becuase you dont need that spectrum so much for flowering and they arent strong enough anyway.