Piririn

@Prodstep: 
Have you tried stress testing cpu/ram/gpu individually? 
Can you reproduce the error that way? That might help you narrow it down atleast. 
 
Programs you can use for this:
Prime95 for cpu/ram  
Furmark for gpu 
 
Edit: Oh and also you could try doing 'memstest' on the ram

  
Uhh are you getting pop-ups or something? 
 
Might wanna scan your computer duder.

Gettings this on every single page I have tried, even the frontpage articles.

Firefox 5.0

Windows 7

@JCTango: 
Just try alt-tabbing out of a game and then back in again.
You should notice the fan noise go up/down right? (your fan cant possibly be that quiet)
 
You dont need to be too paranoid about temperatures, its not going to blow up.  
Most likely it will show artifacts on screen or ctd if it gets too hot.

@Ghooble: Allright that actually looks good, I guess i will pick one up! Thanks.

Mobo:     

CPU:       

Cooler:   

GPU:        

RAM:      

PSU        

Case:      

SSD:       

Mouse:      

Monitor: