I really really want to use solar light tubes to get light inside. "Another great way to get light into your home without bringing in a lot of unwanted heat is to install a solar light tube. These capture the low-angled winter light using reflective coatings within a roof-top dome, and are much easier to install than a skylight since they require no structural headers. Also don't feel limited to rooms right below the roof. The reflective tubes can be run down from the second floor to the first floor though closets or thick walls, and they can even make slight turns."