yes you can just do some research. my bff order it already and she can't wait. you can pre-order on amazon. see related link.
there is really no order, you are just supposed to start with what you need most then do what you need second most then so on. :)
No. The show is not available on DVD
www.christian book.com
Twilight is now available for preorder for through Amazon.com. and you can also pre-order it at barns and nobles, borders, places like that