just to clarify what you said for him
6500k (Daylight) Is best used for vegging
2700 (I actually think this is soft light, excuse me if i am wrong) is best for flowering.
I recommend using mostly the rec type for what you are doing but you get a more complete grow mixing in different spectrums too if you can.
He is right, more the better, I use 1 for germ, after about 2 weeks jump to 2 and increase as it gets bigger. I saw 2-23 watters produce just fine (suprisingly) so it can be done but try to get as much as you can.
He said 100 watts and up, i think he is refering to the incandesant equivelant - don't even bother with that. What you want to look at is the actual wattage 23 is okay and usable, 26 and up is rec.