JitterDew :
I am using this
http:// 1000$ pc build and am wondering how important it is to buy a fan when overclocking. Also if possible could anyone mention anything to reduce the cost without taking performance down? Thanks for any info you can provide me, I am going from building work/economy rigs and am not used to the gaming PC scene. Anyways, JitterDew out.
You most definitely will need a good aftermarket CPU HSF if you plan on OC'ing the i5 4670! The CM Hyper 21 EVO is a good low cost option.
EDIT: I meant the CM Hyper 212 EVO, not 21.
You could save a few bucks by selecting a lower power PSU. 650 watts is more than enough for a single GPU and not enough for SLI/CF. a 550 W. PSU will be plenty for your build.
You could save some more by getting a cheaper case, but you seem to be rather partial to the one that you have selected.
Good luck!
Yogi