One of the best AGA games would be the pinball simulator "Slam Tilt" made by the Swedish group Liquid Dezign.
It's fast, good looking and is IMHO better than all other pinball games I've ever tried on any platform including the Pinball Dreams/Fantasies/Illusions trilogy by Digital Illusions.
(edit)
You can get Slam Tilt here:
http://www.back2roots.org/Games/HD-Games/S/
