From the same website, I found a similar box (it's almost exactly the same) but it's 6 inches taller, so this is the one I'm looking at now.. I think I'm going to go with it, I just have to wait for them to e-mail me back to answer a couple of questions for me.

I'm still concerned with the relatively small height, but...I guess I may have to flower early. Does anyone know what the smallest height can be that you can go into flowering? It's my understanding that the plant can grow an additional foot after flowering begins... And another concern is how close the light is going to be to the top of the plant! I may be cutting it really close here...