What kind of games are you looking for?
What entertains you, what genres do you enjoy?
Personally I'd look towards ChessMaster, SimCity 2000, Baldurs Gate, Fallout, Civilization 2, EastSide Hockey Manager, Out Of the Part 4 etc.
Anything that's not graphics dependent and not terribly dependent on having a new processor.
I've no idea what appeals to you though.