I am building a gaming system and need to know what power supply would be best. I have the new Gigabyte GA-K8NXP-SLI board with the AMD FX-55 processor and 2 6800 Ultra graphic cards. I was looking at a Ultra X-Connect 500w power supply. I like this because you can unplug the wires you don't need to help keep the case clean. Is this a good psu or does anyone know of something better? Thanks for any help.