Two things about your build: Cooler Master power supplies are notoriously bad (apart from the very high end ones). The GX series is not very good at all (Tier 4, which is almost as bad as you can get). You'd be much better of with something from Seasonic/Corsair, for example: http://www.amazon.com/Seasonic-80Plus-M12II-620-BRONZE/... It might be a bit more expensive, but it's worth paying for the quality and modular cabling.
Second thing; the RAM you've chosen is not strictly compatible with your CPU heat sink. Since the heat-spreaders on Vengeance are so high, the CPU cooler has to be installed in a vertical (and non-optimal) orientation. You'd be much better off with low profile Vengeance: http://www.amazon.com/Corsair-Vengeance-Desktop-Memory-... which would increase compatibility for both your current and any future heat sinks you use.
EDIT: Also, as pointed out below, you need a 3570K to overclock, not just a 3570.