My computer is an AMD Athlon 3200+ 2.0 GHz installed in a UMAX cabinet. My nobo is a Gigabyte GA-K8-N51 GMF-9 with 512 MB DDR400 ram and onboard nVidia GeForce 6100 GPU. I hav 2 optical drives, 3 hard disks and a sound card connected to my pc. Is my current UMAX 350 W SMPS enough to power my...