Let's see. We own about three complete sets, including one "English" set. I still have to get my own set, though, for when I move, although 'Philosopher's Stone' (English version of the first book) is mine.
Your library will definitely have them! Or, most of them are paperbacks now, check Borders.
Which is the second? I keep meaning to check the library, but last time I looked, I wasn't sure.
Thanks, Jen! :O)