Don't know who has the rights to half of the games I'm about to mention, but it'd be interesting to see them crop up.
The Suffering
R-Type Final
Psi-Ops: The Mindgate Conspiracy
Marc Ecko's Getting Up
Baroque
The Punisher
Downhill Domination
Frequency/Amplitude
Goblin Commander
RoadKill
The Mark of Kri
Syphon Filter: The Omega Strain
Deus Ex: The Conspiracy
Gladius
And any light gun games that could be reformatted to work with the PS Move, that'd be sweet too.
Notes:
a) These are in no particular order of preference
b) Some franchises have been excluded due to the HD re-releases that have been announced (re: Devil May Cry, Jak and Daxter)
c) Sit-ups/crunces are bad for your back. Bad enough that if the same motions were a part of your normal job, your workplace could be fined or shut down by US Workplace Safety law.
Yes, that last one really doesn't have anything to do with games, but it's interesting and it's true. So why not share?