For my next rig, I'm considering a dual Opteron 244 workstation based on the Asus K8N-DL (nForce Pro 2200, standard ATX, non-SLI), and I'd like to know if the OCZ Powerstream 520W PSU would suffice. The unit has a 33A rating on its single +12V rail. If not, then would the 600W Powerstream suffice with a 20A rating on its 1st 12V rail and 18A rating on its 2nd 12V rail (again, this is a non-SLI setup, but with a PCIe 6800 standard, 2x 36.7GB Raptors, and a single optical drive at most)? Which would be best for system stability? Thanks.