What sort of games will my new PC run?

[Potable_Toe]

I added a list to my first post of a few games that would run well, not all of them are new but they are all good

-Half Life 2
-F.E.A.R.
-Left for Dead (infact any source game)
-Trine
-Medieval Total War 2
-Elder Scrolls IV Oblivion
-Dragon Age
-Mass Effect 1/2
-Colin McRea Dirt
-Burnout Paradise
-Prince of Persia (2008)
-Supreme Commander 1/2
-The Chronicles of Riddick

Expanded List
-Borderlands
-Command and Conquer 3/4, Red Alert 3
-Star Wars The Force Unleashed
-Street Fighter 4
-Warhammer 40K Dawn of War 2
-Horoes of Might and Magic V
-Lara Croft and the Guardian of Light
-Magika
-Mirrors Edge
-GTA 4
-Race Driver GRID
-Comapny of Heroes
-Dead Space 1/2

Not all of these games will run smoothly above medium settings and may need to go down to lower resolutions in order to crank up special effects but they should run reasonably well to perfectly fine.