4, 400 w lights would give you aprox 36 sw ft...

1, 400 w light is 3*3.. Times 4.. is 36.. On movers, you could add probably 2 more feet to each, to like a 3x5 area.. so youd get up to 60 feet.

You havce 200 sq feet, but that sounds like an awfully large grow for your first time.

If you got maybe like, 2 1000w's to give you basic coverage overall and supplemented with the 400's, you might have something.

Id check out some of the lighting articles that are stickied in the forums, that will give you a good handle on the mathematics of your situation: Indoor Lighting - Cannabis Forums Message Boards - Medical Marijuana, Cannabis Club, Dispensary, News