Diffing XML files or storing binary documents

Hi,
Has anyone else here had experience with trying to store documentation
into subversion? Specifically I'm looking at OpenOffice files.
I was thinking of using the FlatXMLFilter which will avoid the zipping,
so the files should diff better and thus store more efficiently in the
repository shouldn't they?

Any suggestions, caveats, neat tricks when doing this?

-- 
---------------------------------------------------------------------
Chris Jensen cjensen@edex.com.au
Educational Experience (Australia)
Postal Address: PO Box 860, Newcastle NSW 2300
Freecall:       1-800-025 270      International: +61-2-4923 8222
Fax:            (02) 4942 1991     International: +61-2-4942 1991
Visit our online Toy store! http://www.toysandmore.com.au/
---------------------------------------------------------------------