Hmm... Lemme see if I can remember them all:

JAMMA cab
Asteroids (x2)
Tempest
Sega Super GT twin driver
Q*Bert (x2)
Qix (x2)
Irritating Maze
Street Fighter II
Super Buster Bros
Joust
Continental Circuit
Star Wars
Return of the Jedi
Space Invaders (x2)
Space Invaders Deluxe
720
Galaga
Stocker
Gauntlet
Gauntlet II
Omega Race (Upright and Cockpit)
Kickman
Centipede
Top Skater
Pac Man (x2)
Ms. Pac Man (x2)
Turbo
Frontline
Berzerk
Frenzy
Pac Mania
Mr. Do's Castle
Paperboy
Mouse Trap
Space Duel

Pins:
Checkpoint
Firepower II

Misc:
Ice Cold Beer
Black Beauty Shuffle Bowling Alley
Big Choice Crane Machine
Change Machine

MAME stuff:
VectorMAME
MAME Cocktail
Crappy Soccer game about to be MAMEd

Plus a few I'm probably forgetting... and a TON of boards/monitors/parts. The list changes almost every week though.

DogP