I am currently using a pair of Dimgogo 2000W (356 watts each). I also have four daylight LED flood lights to facilitate photos every day or so.
I have a few additional lights (2 Dimgogo 1500W and 1 Dimgogo 1000w) to use as the grow gets larger in area. I will use the 1000 for a cloning/starting bench going forward.
If you have some time to kill, here is a link to my grow journal: First Grow From Beginning to End 
The Dimgogo lights are not amongst the most popular and talked about lights but I am finding them to be an outstanding product so far.