Hi there. I'm about to build my PC. I'm thinking about moderate gaming usage: phenom 2 x3 BE, HD 4850 1GB, Asus M4A785-M mobo. I have Antec true 550 ( 5V, 12V and 3.3V max load 530W) in my current PC) that I've been using for a couple years now. Is it still good to use paired with my new build-up? thanx for an advice.