okay well yes i have built a cab the is 56 h 32 w and 15deep, and created a pc box but i have the room to have them growing not in an enclosed area. so my question is what would be the best lighting? i was thinkin of maybe a 400w hps. if i did that what would i have to do for proper ventalation? or could i just stick the hps in there and control the temps with some floor fans>? any input need please!