I realise this post was quite a while ago.. anyhow this may be of use to someone, even if not to the original poster.
WordPress › PubSubHubbub
This is an excellent way of ‘syndicating’ content using feeds that contain your article content (atom/rss/xml/someother feed format)
It allows you to have one source that feeds many wordpress sites with content. As soon as you update or add a source article, all the wordpress sites are updated straight away.
Nice huh?
I can assist in setting something like that up.
Heres my company info if you are interested:
Hunter Web Development Ltd,
Hunter Web Development
London, UK
Good luck!
Regards,
Ross Hunter (Director)