Is this computer good?

I will try a better PSU, anything else?

I have not considered building, this is my first gaming pc, i will use it for video editing and games.

1154.68 $

I live in Europe, things are very expensive (-;
 


Okay, I can only change the HD 7850 to a 2GB GTX 660 OC MSI TWINFROZR III, will that make the perfomance better? And how got do you think the perfomance will be? In high settings And FULL HD

Here is another one http://topdata.dk/product.asp?product=9205
With 4 games free! CRYSIS3, FARCRY3, SLEEPING DOGS, HITMAN ABSOLUTION

Thanks for the help, it really helps me!