Spongey- I really don't have much room. This set up is in my bedroom. The need for the tent came from the 1000w HPS bulb at 145000 lumen was killing me.
I swear that I could get a sun burn on my a@@ before I rolled out of bed.
Jester- take a long look at the DR pro 11 series, they have a lot of good points to them.