Calculating PSU

[Chandos]

can some1 help me with calculating the amount of power that I need for PSU???
is there any mathematical equations??

 

[bomberboysk]

http://extreme.outervision.com/psucalculatorlite.jsp

Even then, you will want to get a quality unit. Cheap off brand units are prone to failure, what are your specs/price range?

 

[Bodaggit23]

http://www.corsair.com/psufinder/default.aspx

 

[Chandos]

I'll go with either i7 or C2Q and still waiting for i5 actually...
umm not sure yet... but I don't wanna waste much on PSU...
anyone know about the quality of coolermaster PSU??

@Boda
I've tried that link once, but it gives me 3 options i guess, so i don't know which one should i choose XD