Dragon Unpacker - http://sourceforge.net/projects/dragonunpacker/
Multi Extractor - http://www.multiextractor.com/
2dk2nd sprite sound ripper - for ripping stuff from games created in 2D Fighting Maker 2002 (by Enterbrain). I don't have any links, but I can upload this if someone wanna this app.
gcf scape - nemesis.thewavelength.net/index.php?p=26 (mostly for games on Source engine)
Game File Explorer - I don't have any links, but I can upload this if someone wanna this app.
Nova Extractor - http://www.volny.cz/nova-software/