It's best not to cheap out on the PSU, they usually last much longer than any other component other than the case and it's best to have a quality reliable one from the start especially if you plan on overclocking.
Also are you sure that is the case you want? looks a tad over the top (and I never got the whole LED/neon thing) and all those fans will probably end up quite load and unless you plan on overclocking aren't really necessary.
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