your gonna need at least 2 more 40w lights. you could just get 2 more 23w but i dont know if it would be worth a grow. oh and for flowering your gonna need a lot more
buy a couple 65 watters from wal mart...there 18 dollars a peice.. there equivelant to 250 watts.. and high lumens also...then you will be set...the more light the better...