get a corsair hx520> $80 after google checkout. this is easily one of the best psu's out there. there are modular cables with 24 and 4 pin atx power cables sleeved. the rest are flat cables which can bend and hold shape. the fan is also pretty quiet too. this is way better than that antec psu.
I would recommend atleast 600W (HX620) for your quad core setup. It will be good for your next build, granted it's about the same calibur as this one, not too high end, but definitely not low end either.
With that tuniq, your naturally going to want to overclock the quad, so give yourself ample room and get a bigger power supply.
Even a 300W power supply is going to be more than you'll need for that setup, assuming you don't overclock anything. I'd say just save your money, don't waste it on a high power unit, get a high quality 400-500W power supply. Look to Seasonic, FSP, Silverstone, and Corsair(basically Seasonic).
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