http://pcpartpicker.com/p/86PI Some questions I have are: Will this power supply be good enough or should I get a corsair 750w? And still debating on whether the i5-3570k + Z77 combo is worth it versus the i5-2500k + Z68 combo I had planned instead
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The weak warranty would keep me from buying that psu. But yeah, it will be more than enough, a good 500w would be fine.
Not sure why you would be considering Sandy Bridge at all.
Raidmax hasn't really issued out much of a quality psu yet, which is one of the reasons why that psu is pretty cheap compared to other competitors.