Thanks for all the great info Jamistigator!

I just have a couple questions for yo if ya don't mind. Should I be placing the carbon filter between the cool-tube and squirell fan or after the squirell fan (closest to exhaust hole)?

Also, since it looks like I'll be following in your footsteps, I was wondering if you'd mind telling be how you attached your carbon scrubber and what you used to do so. I'll be using a DIY carbon scrubber (link below)

http://www.gardenscure.com/420/secur...on-filter.html

Not sure what you used as a carbon filter, but hopefully this can be adapted over to this setup. The only thing that worries me is that one end of the carbon filter is closed off, and I'm assuming I'll need both ends open.

Thanks again for all the amazing help everyone.