Some of you are into Post Apocalyptic style games, so I thought I would mention the Digital Devil Saga games in case you have missed them.
This RPG series is on the PS2 and has a very nicely polished anime graphical style and some great gameplay.
I was initially a bit confused as to the sequence of the Shin Megami Tensei games, but DC told me the sequence they were released in, so that is probably the best order to play them in:
* Shin Megami Tensei: Nocturne
* Shin Megami Tensei: Digital Devil Saga 1
* Shin Megami Tensei: Digital Devil Saga 2
* Shin Megami Tensei: Devil Summoner
All of the games in this series centre around he game characters ability to transform into Demon forms during combat, but the two Digital Devil Saga games interest me the most as these are the games that centre around a Post Apocalyptic world.