Cool!! Mighty impressive list!
Here's some small addition
Eyecandies for desktop environments
KDE-Look
GNOME Art
Mail clients
Thunderbird
Ximian Evolution
Miscellaneous OOo links
OpenOffice Extras
OpenOffice Macros
http://www.oooforum.org/forum/]OpenOffice Forum[/url]
Some more OOo macros
Small tutorial on OOo Writer Macros
Here're 2 more links I dare not forget
GNU and
FSF