Hi wandapec - for books: I buy from amazon.com and http://www.loot.co.za/welcome?referrer=106965849355
depending on which one has the price/delivery cost advantage. I can guarantee you that you will enjoy Dan Barker's Godless.
btw For young children I personally like the Buddhist approach of teaching them to respect nature's small animals and plant-life and to extend the same feelings to larger animals and human life and then to emphasise the symbiotic relationship which exists between organisms in nature.
Have a nice day!