Hi,
If this is simply for SEO purposes, I would suggest spinning (rewording) your article.
I have developed a tool which automatically submits to around 200 of the biggest articles directories and ensures that no articles are too similar.
It's definitely provided a boost to the sites I have done this for.
I can let you have a list of the articles' URLs when accepted, this is usually after a week or so.
Regards,
Tim