Check out photo in the first post. I'm using the 4 lamp there, though you can't see much when it's on. It's 'off' in the last photo I posted though.

The grow area is made up of bits and pieces of stuff. The base is a couple of 48'' x 18" sheets of plywood sitting on 5 gal pails. The pails will be replaced when the plants need more head room. A 2' x 4' 4 lamp T5HO fixture hangs against the back wall on chain and is adjustable. The 400 W HID is on chain, easily adjustible also. There are 4 sheets of cardboard with mylar which hang on wire hooks and are easily removed for me to work with the plants. This set up lets me have the wall reflectors movable to adjust for the number and size of the plants. A vertical fan is just outside the grow area, even with the HID lamp reflector.
What I like about this set up is that it can be taken down in seconds and doesn't look like a "grow-op". I will take a photo later to show these details.

Shovel