Greg - Here's an "old thread" regarding "Holy Grail" pins done a while ago -
http://aussiepinball.com/index.php?topic=5926.0Heaps of members have joined since, so we can hear more interesting stories.
Mine were always Paragon and Fathom - got both. I then changed to EMs - So it became Bally Fireball and Vampire. I sourced a MINT Fireball and I'm still hoping for a Vampire !