it is vry hrd for sm ppl to understand txtng abrv & shrtnd sntance strktr. Lso 1 1ders if 1 is in 2 mch of a hrry to write a ? in fl wrds to mk yrslf clr, how others wl spnd tm to ansr flly.
I don't really understand what information you are asking for.
Edit to add (since you went to the trouble of editing your original), sorry, don't really know the answer to your post, but hopefully some of the more experienced studio folk can help.
How big is your studio space? Even 400 may be too much in a small place. As for picture quality it's goin to be down to how you use the lights rather than which lights you get.
Ya, sorry, I've been over in rant and forgot to act like a human being.
It isn't really what you asked for, but there is an old thread comparing 300w/600w that might be helpful.
My favorite strobe users on the site are H2 and LVicari check out their setups and output for their styles. They are both pretty helpful guys, you could shoot them a PM.