I agree with six8. go for the cfl's right now, and go bigger when you have the room. I am using cfl's and don't seem to be having any problems with any of the light issues associated with cfl's. I havent seen any plants grow faster or bloom faster than what I can do. I take that back, there are some super growers on here that I'm sure could do better with a flashlight than i could achieve with a 1000w hps. Go cfl bro!!!