I'm trying to get some clarification on the issue of submitting article to the article directories, but if you do, can you still use the same article on your own website?
If you are using your site article which is not duplicate content but original and submitting the same article in different article directories, then no content duplicacy comes because you are leaving your resource which is only pointing towards your site.
The best way to do it really is only submit one article to each of the article directories and hubs, you dont want the same content spreading all over.
But google is looking less and less at penalizing for dup content and the algo is getting smarter and detecting what was first, etc.