I have been freaking out over a new power supply. It is for my 750ti build. I know that I only need about 400 watts. I also know that you need a quality psu no matter what. I have been looking and have it narrowed to either the EVGA supernova 550 g2 or the GS. I don't know which one. Is there any others? I really really really don't want to have a psu explode on me and take everything and have the possibility to burn my apartment. Can anyone help me have some piece of mind and ensure a good psu.