I had planned the same thing for my log home (Texas), but have decided on full tile downstairs. However, I did a lot of research before changing my mind. There are 2 products that must be used before the floor goes down. One is a moisture barrier that has to be applied with a "specific" size trowel. After it sets up, you come back with a special adhesive applied with another "specific" size trowel. Apply the adhesive in small sections and lay the floor quickly. Now, be sure that the bamboo flooring you purchased is the type that can be successfully glued to a concrete slab. They only recommend certain types and I can't remember which ones right now.
Good luck, I'm a DIY'er but the thought of all that process made me re-think my plan. I'm still going to install Brazilian Teak on the second floor but that's a piece of cake compared to a slab.
Building My Log Home