Important PSU Question

Hi,




I've seen so many people asking for "What PSU should i use". Since I'm Going to buy a PC soon, actually how do i calcuate the amount of power i would need?

Is it like adding all the Power Requirements from the Box of each component and then Buying one accordingly or is it more complicated than that. Please explain cause this is the first PC I'm building on my own. Any links or a small explanation would do for me.

Thanks Guys.

Then, when you are ready to buy, post your budget, main purpose of PC, and prospective list of components. There are regulars here that are most excellent at system configuration. (I, alas, am not one of them.)