Im assembling a i7 3770 (non-k) for audio production. I have a basic GeForce 8400 GS. Not really into any gaming. Just going to do music production, so need a silent case with good cooling. Im thinking of NZXT H2 over the CM 550 after reading reviews. There is mixed opinion about the thermal performance of H2. Do I need a CPU cooler like EVO 212 or will I be good with the stock case fans and stock CPU fan? Room temperature varies from 25 to 30.