For those that asked, here are some more pictures of my hood:
Here you can see the fan tumors on top:
I had to bump up the brightness in this one so you could see anything but the MH bulbs:
This one shows how I mounted the VHO:
That's it for pictures I could take without being redundant. Hopefully they are somewhat helpful. THe hood design is pretty simple. I used 1x10 for the sides which sit directly on top of the tank. The front is 1x3s glued together. I put 1x3 around the bottom to conceal the top lip of the tank and keep the hood from moving side to side. I used 1x2 around the top as moulding. The top piece is just 1x2s glued together. The door consists of the front piece and a 1x3 on top so that it wraps around the top and opens up the top a little when the door is open. I used a rabbit-type joint on the 1x3 part of the top that meets the 1x3 top part of the door and on the 1x3 top part of the door itself so that light doesn't leak out the seem there. Like I said, it's a pretty simple design. Hopefully my description has helped more than confused.
Brian