There are some very nice assembled MH and flor fixtures combos available with fan cooled light hood i.e. apualight pro HQI, reefstar, ocean light, coralife, reef optix, to name just a few. I would brouse the internet under aquaium lighting and you will see quite a few subjects and outlets. I'm using custom sea life pendants because I got a close out and purchased 3 years of bulbs at same time. I prefer a 12 or 14K MH with an atinic o3 and a 6500 k flour for a full combination system. some of the manufactures above are not combos but you get the idea. I like the german bulbs if that helps. I dont have a specific site or light setup as I will replace my system in three years with blue wave ballasts type Iv electronic and reevaluate the bulbs at that time. Lighting system MH full fixture setup out of box will cost you 600 to 900 dollars, retrofit will cost you about 500 tops. hope something here helps.