Syriuslydelyrius: The reason for the water cooling is to avoid higher a/c bills thus reducing the electricity bill as well as more efficient lighting due to placement/heat. Elec is 0.13/kwH where the growing setup is. The active cooling setups are really going to help since its sunny and hot year around.
BongJuice: That's pretty much the system I was thinking of.
OregonMeds: To further again clarify the USA part, I dont live in the USA, and the system isnt setup there, the vegas in my username is just because its my fav city. =) So medicinal or not, the laws here do not matter whatsoever with respect to that.
To a few: With respect to yields, please discuss. Pricing doesnt need to be discussed, this isnt the place for that, and I'm not "moving" this stuff.

However any suggestions or thoughts on yield maximization is always appreciated. This system was setup with the intention of being "too much" as its CHEAPER to buy FOUR tents and only use 2 and keep rest as spare parts than to buy two and need to buy more or replacement parts later.
On the electricity side, we're figuring about 6000kwH/month of usage. Anyone concur?