I want to play newest games on laptop and also I want the game just cause 2 to work great for me... so if someone can help me about configuration for these things I'm very thankfull... :D

In that case you are looking at big $$$$$.

In that case you are looking at big $$$$$.

Is this goood?
OS: Windows Vista/7
Processor: Intel Core 2 DUO @ 2.6 GHz
Screen: 15,6" HD (1366x768)
Memory: 4 GB
Hard Drive: 320 GB
Video Memory:ATI Radeon HD 5750
Battery: lithium ion to 5 hours
Sound Card: DirectX Compatible
DirectX: 10.1
Keyboard & Mouse,DVD Rom Drive,Wireless,Card Reader.

It'll do, but don't expect to play games at maximum settings.

It'll do, but don't expect to play games at maximum settings.

I don't know about the other games, but main parts of this are some of the recommended parts for playing just cause 2 on high settings...
Just Cause 2 System Requirements - PC Game Just Cause 2 requirements (http://www.game-debate.com/games/index.php?g_id=550&game=Just%20Cause%202)

Those are recommended specs only.
If you want something that's going to last a lot longer you need to rethink your choices.
Have a look at Intel i5 based systems and AVOID Vista.