Replacing my old computer and need help

Approximate Purchase Date: next week or two


Budget Range: around 700$

System Usage from Most to Least Important: (Gaming, movies...)


Parts Not Required: (keyboard, mouse, monitor, speakers, OS)


Preferred Website(s) for Parts: Newegg etc.


Country of Origin: Usa


Parts Preferences: I like AMD better, but it is OK to go wit intel if it offers better performance.


Overclocking: Yes


SLI or Crossfire: not likely


Monitor Resolution: (1920x1080)


Additional Comments: here is what i want. I will move out of town in a while, but will not take my old pc with me. So i decided to build new one. Hope you can find me good computer that is as cheap as possible and will play all new games, as i like to play games in free time. (but i don't need high end gaming rig because i do not need to play on ultra high settings, just that game runs ok, with solid fps on normal detail settings is fine with me   )

This is my soon be old computer:

Intel core2duo e6750 2.66 Ghz
gigabyte GA-945gcm-s2c
2Gb RAM ddr2
2x160GB WD caviar blue (7200rpm)
Nvidia geforce 8800gts
lc power 450W psu
regular case

So cheap as possible and better than my current computer, is what i am looking for .

Thanks