My PS360 Collection as of 6-24-2009. What gem(s) am I missing? Recommend

[Slimebeast]

Oblivion
Oblivion: Shivering Isles
Fable II
Kameo
Fallout 3
Assassoins Creed
Far Cry 2
Resident Evil 5
Dead Risin
Halo 3
Left 4 Dead
Bioshok
Mass Effect
Prototipe
Guitar Hero: Metallicus

^add these gems and ur collection will be almost perfect!