http://gbxemu.com/
http://www.angelroms.com/
http://www.topromsites.com/
http://www.abcsearchengine.com/roms/gba_roms.htm

Thanks for this important info!
But it seems that none are for Pinball...
Here are my own links:
http://planeta.eltimon.com/ldurante/
http://www.vpforums.com/vptables/tables.php
http://emu.makii.pl/vp/listafliperow.php3

Happy gaming!

Jean-Yves Delpech aka Jive, DLW webmaster and Pinball addicted.