Here are the PC "Arcade type" games that I have currently on my PC:
Ether Vapor (works great with MAME default keys. Sadly not on my cab which has a custom key layout)
Geometry Wars
Grid Wars
Hamsterball (Great game for a trackball setup!) ($)
Hurrican
Mechatron
Metroid 2 Tech Demo
Mugen
Mutant Storm ($)
Raiden III ($)
Super Mario War
Typhoon
These are all cabinet friendly PC based games. Other PC games that use the mouse and keyboard, such as Half-Life 2, etc are really meant to be run on a real PC setup, not an arcade. (duh) Who wants to stand playing those anyway?
~ DeLuSioNaL