I agree, read as much as you can. I found the cheapest way to go High intensity discharge (for the most/best bud) was to get it from here: http://www.1000bulbs.com/product.php?product=468. (depending on your wattage, but thats a good site). Then I just got a HPS and a MH conversion bulb (cheapest- http://www.plantlightinghydroponics....ducts_id=1772). Just wire up the ballast yourself using http://www.onlinepot.org/grow/wiringlights.htm. Not the cheapest way to go, but it will pay off... as zandor says, if you go cheap you grow cheap... or something like that :thumbsup: