250 watt HPS System http://www.insidesun.com/index.php?action=item&id=747&prevaction=category&previd=2&prevstart=0 With the HPS system I could buy an MH conversion bulb for $40 or just buy this system for $90: 400 watt MH system http://www.insidesun.com/index.php?action=item&id=753&prevaction=category&previd=2&prevstart=0 On the MH system is concerns me that they have so many upgrades for bulbs and they seem pretty expensive. I don't want to get a crappy bulb. This is for my first grow, looking to start off with 2 plants and hopefully do SoG if I can get 2 light systems.