@Soulharvester He was asking generally for hardware advice and I gave it to him. Investing in a 500W PSU is utterly ridiculous, unless you are going with a very conservative build with few peripherals that work via USB, a GPU (or multiple GPUs) that have a very low power consumption (and thus, in the case of older series cards, less power), and if at some point you want to consider overclocking, forget about it.
After reading his reply, however, his lack of basic knowledge of terms has shattered the baseline confidence I put in people to be able to handle their own hardware affairs, let alone overclocking components.
The bottom line, good sir, is that without knowing the components you are starting with, you don't know your power needs.
Also, be certain that when you are getting a new GPU, CPU, nd PSU that they fit your computer. That is to say, an intel chip with an intel mobo, and that the case/mobo you have allow you to physically install the GPU. And then for the PSU, whether you get a modular power supply or not... As in, how's your wire management?