Nice you pretty much have all the best ones picked out. Like another user said get Resident Evil 4 if you haven't played it. You probably have with your Wesker profile picture. The Metar Gear Solid & God of War series are a must.
My other recommendations:
You may also like to check out TRAPT - its a action/puzzle game where you set up different traps to take out enemies invading a castle.
Check reviews for Indigo Prophecy too. It's a third person adventure thriller where you play as the murderer and the detective hunting him down. I really enjoyed the story.
Look into Zone of the Enders 2, Twisted Metal Black, and the Onimusha series. Onimusha 3 was excellent.
Oh and I highly recommend Balder's Gate Dark Alliance if you have a friend to play 2-player local co-op through the story mode.
