I still thinking about running hps since i am looking to cover a 4x4 area with about 6' cieling. But maybe thats to low a height for hps. The bad boy 16 is looking pretty solid. I also found a guy selling 2 blackstar 240s for 300 shipped. I was interested in the gavida 1000 and turn it down to 600 but it says i need a 240v outlet which will prolly be out pf the question.. what are your thoughts