first grow: northern lights; advice requested

things are shaping up. i'm getting ready to place an inside sun order, should be able to get most of what i need. the rest will come from walmart, home depot, and gardening stores if necessary

inside sun list:
250w hps system
24' of mylar (going to make my grow rooms completely out of mylar, about 3x3

little ph meter
superthrive
two timers
floragrow/micro/bloom set (hydro i know, but suppposed to be good with soil)

here's a cool one: two stick-on zippers, going to slice the mylar and use this for a door. very cool


and that's about it. let me know if you think i should pick up anything else from insidesun while i'm at it, so i can save on shipping

Are you afraid to go with the 400. Better yield, i think. They are cheap to, hell get on craigs list or go to your local hydro shop, they've always got good deals especially in the Co man.
Nonetheless think your gonna have some fun with this shit. have you thought about smell. My seeds were supposedly no smells, I dont think so. Peace, Mulletman.

insidesun.com has good deals to on 400watters