Isn't this something that could be done (better?) with the Firefox extension Zotero (http://www.zotero.org/). It allows end users to define and contribute citation styles with a standard XML format (http://xbiblio.sourceforge.net/csl/) and has a very neat feature to export to Word (OOo coming soon).

Just a thought.

dave

Dave has missed the point of Free software. If there was actually a need to do this from scratch, it would be made and sold commercially by someone with a bit of nous and professionalism.