I've heard good things about those fans, the only issue that I have is space. As you can see in the pics I don't have much of it. How big are they? and if you don't mind me asking, what is the size and dimensions of the one you have? The outside of my box is only 16inches x 15 inches, and the inside is less than that, will it be able to fit in there? In addition, my height is only about 3.5 feet high, so all of the space that the fan makes will take away from space that I have for lights and plants. I'd rather get one of these than fry the plants, for sure, but I'm just concerned about it fitting in there.

I liked the idea of the computer fans, for one because they could lie flush with the wall, so it didn't affect the space inside the cab, and for two because they can be dialed and messed with rather easily. I might try just taking away the ducting from the fans, and putting the computer fans directly against the wall and pushing straight out. I'd have to work on the light issue though, so I'm not too sure what I'll do.

The only other thought is if I could somehow wire one of those TD Mixvent fans so that it opperates outside of the cab and looks like something else, but this isn't really what I would prefer to do.

Thanks for the help.