Somedude, glad I could help. The info about CO2 in the soil makes since too. If you are looking to add benes on the cheap a few methods are available that are pretty easy.
The most obvious would be using Korean Natural Farming techniques to breed your own.
www.prokashi.com/videos for step by step info
If you aren't worried about quite as concentrated of solutions, a well aerated tea will also add some benes as long as you have some good food sources in it. When I do one of these, I usually always have a natural sugar source (molasses, sucanat, or honey), a green (sea kelp, peppermint, or comfrey), and earthworm compost or bat guano. Sometimes I add other things to deal with nutes that I feel could be upped in my soil. Many more items can be used. I'm all about using local, readily available items as much as possible.
Good luck, let us know (or pm me) if you need anything else.