Hi! I am buying some new parts for my PC and wonder if a 850 PSU will be enough. Specs: GPU = XFX Radeon HD5850 (500W) CPU = AMD Phenom II X4 965 Black Edition (125W) CPU Liquid Cooler = Corsair H50. MB = Asus M4A785-M RAM = 4x1GB DDR2 800MHz Case = Cooler Master CM690 (With 4 Case Fans) Of course I will have a DVD player and some usb devices connected The PSU I will use is, Corsair TX 850W PSU. Is it enough to run all this smoothly? Responds would be appreciated.