If your intention was to simplify, you went a bit far. You can run a computer without drivers, but it's 50/50 your PC will even boot up without a properly supporting bios.
I would get the Antec ea650 over the cx430.. The the Seasonic 520 is probably better than both. I run the rebranded seasonic, aka Corsair hx520, in my overclocked 950 with 560ti with plenty of umph,.