please folks........ dont lead this person astray, dude stick to the old rule of thumb, "the more light, the more buds" (which if im correct, were not looking for cheap light, were looking for HUGE TATER BUDS)

THE BEST LIGHT MADE FOR GETTING SUCCESS WITH THOSE "BIG BUDS" IS A HIGH PRESSURE SODIUM,

yes other lights will work, but the main objective (YEILD) will lack...
the plant needs a red spectrum to bud (which this puts off)

it will be decent for veg. , but you will see the difference right away

plus...... think of this , CFL bulbs 7-11 dollars US (per bulb)
plus...... your fixtures, incandecent fixtures 5-??? dollars
around 50+ dollars

your 400w HPS (ready to plug in and use) $144.95 US dollars

conclusion.......

400w HPS 144.95 = big ass buds and dank smoke (depending on you)

43w CFL x6 @ 8.94 ea. (53.64 just bulbs) = decent yeild

seems like a no brainer to me....

144.95 HPS set up @ http://www.gchydro.com/sunsystem/SXH_H40.asp