Suggest me a PC game?

I just built me a £1000 Gaming PC and I'm struggling to find games I might enjoy, here's a list of what I already have,

Far Cry 3
AC 3
Complete Total War set
Football Manager 13
Tropico 4
Battlefield 3.

Please suggest me a couple of games I could get.
Update: Call of Duty Black Ops ? You must be joking me!
Update 2: Just to tell you, I don't really enjoy Future post apocalyptic games.
I tend to enjoy historical/modern games rather than future.
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