my domain link(site) may change, problem for article submission?

hi roomies!

I'm about to start doing some article marketing, but
wonder if I change domains will that be a big problem?

I have domains expiring around mid month, yet I don't want to wait
to start writing articles, I can always just shift all the host files to the
new domain and then edit where the article has been submitted and not
skip a beat...t

the sites are new and haven't been marketed yet

would that work? since I don't know if I can edit the link after an article has been submitted to places like ezine or articlebase?

(Second question if I may...)

I'm new to the whole article marketing scene----

If I write different article for the same site
and submit to the same repository different articles
like "ezine" for example, is that a "No No" ??

is that ok? or will they see the same link therefore
that is not allowed??

any feedback on either point would be very helpful!

thanx !

hali~!