Flowering Lighting Question

I am flowering 12 plants, but am on a budget and am trying to save where I can right now. I am using 2 600 watt bulbs. One is a halide conversion and one is a sodium. Should I eat ramen and save some money to buy another sodium bulb, or am I ok running both a sodium and a halide during flowering?

I was using a 250 watt hps and a 400 watt metal halide with fluorescents hung verticaly and its seems to work good... I heard the halide added in there will provide the UV rays a plants needs for propper growth!!

A dozen girls under that set up should work just nicely if you rotate the ladies avery couple of days.... man cannot liveon ramen alone...

High pressure sodium for flower and metal halide for veg or cfl for best results that is.....

Sick, thanks guys.