Nice. What kind of lighting system are you using in there?
I have seven plants flowering in a U-haul wardrobe box right now. I constructed it for housing my mother plants, but i had some plants that were ready for flowering, so I postponed moving my moms into their new home just so I could see what kind of buds I would get using CFLs (I've only used HPS up until now). Really just an experiment...obviously,I don't expect to get huge yields, but I'm planning to permanently switch from closet grows to (smaller) cabinet-style grows for the near future, so this allows me to test out different pot sizes, exhaust fans, etc. to see if I'll be able to produce sufficient quantities (for my own personal use only) in a 2' x 2' box. So far it's working very well...temps easily stay below 80 deg F with only three pc fans (two running constantly, and one thermostatically controlled to turn on at around 82 deg). One thing I've found about these small cabs, though... the heat can build up VERY quickly if the ventilation isn't good. My box easily shoots up past 85 deg within minutes if I open the top without opening the door at the same time - and I only have three 42w 2700K bulbs in there.
I lined mine with 6 mil black and white poly...and I constructed a PVC frame with plywood shelves to fit inside, so this thing is quite solid, and it's not much of a hassle when I spill water on the inside. I have it elevated off the floor (and on wheels) on a furniture dolly, so I don't worry too much about the box getting wet on the outside either. I keep it nearly against the wall in the garage, and the door and fan outlets are on the "back" side of the box, so it's very stealthy (aside from the slight noise of the fans)...blends in very well with the other boxes we have stored there.
I don't have any carbon filters on it now (since it wasn't really intended for flowering), so it's starting to smell a little (almost four weeks on 12/12)...but I recently set up my inline fan with a carbon filter on top of the box, and that's doing a good job of minimizing any odors (so far). It's only been less than four weeks on 12/12 though, so I'm expecting a lot more stink in the next month or so. I'm working on setting up another wardrobe box for a more serious (HID) grow...using an inline fan with carbon scrubber. I'd like to get a 250w HPS in there, but I'm not sure if the heat won't be a problem in a box this size. As I said, I'm used to growing in slightly larger spaces, so it's a learning experience for me so far. Once I get my real flowering wardrobe box set up, I'll put my old 150w HPS in first just to see how difficult it is to control temps with an HID in there.
Anyways....here are some current pics of mine.
And some close-ups of my "ladies" (Maui Waui, Sweet Tai, and Early Widow)