I don't live in the states but I want to buy the sony ebook reader and was thinking of letting a famliy member who lives there buy it for me , now my question I am kind of confused on how to upload books to the reader , I mean can I have books or articles which are downloaded to pc and simply transfer them to the reader or do I have to connect to the book store(amazon) online as my only means of getting books on to the reader ? Please

this is very important