I am going to be buying a light for indoor masterlows/powerstouts and I was really looking at the digital ballasts. What do you think of these? http://www.bghydro.com/BGH/items.asp?Bc=LUMATEK You can configure a complete system with a digital in it. I would rather have a 400 watt, but they do have 250 watt digital ballasts which may be better for a cab grow as I only want a small grow with good heat management. Also I noticed they have air cooled hoods but they add tons to the price so are they really worth it? Also if you know where I can get a quality 250-400 watt for much cheaper please tell me.