Dh got a rebate in the form of a prepaid Amex, so I used it to order our books for biology on Amazon last week. (dd has kidnapped the human body encyclopedia already
)
I think I am going to order SOTW 1 materials next and get it all in digital. Then I can print extra copies of the coloring pages/maps etc as needed and do the read aloud on my ipad. I might order the actual CD's though instead of mp3's because I am not so tech-savvy with digital audio stuff.