Deus ex and witcher 2 with my computer specs plz help?

Hi i am thinking about upgrading my computer this will be my new specs

i can afford

cpu:core 2 quad q9550 2.83

ram:8 gb ddr3

gfx card: ati radeon 5770



will i be able to run new games like witcher 2 and deus ex good on high resolution and good quality or no :D:D



plz help me and answer meDeus ex and witcher 2 with my computer specs plz help?
Looks good so far



Build Example ...

http://www.youtube.com/watch?v=7DSWuQoGZ鈥?/a>

Another ...

http://www.youtube.com/watch?v=cB35fxqpO鈥?/a>

Budget build...

http://www.youtube.com/watch?v=soNhBnXxi鈥?/a>