NZXT S340 extra fans

[Skreeps]

So I am building a computer primarily for gaming at 1440p and my build is:

CPU: I5-6600K w/ Cooler Master Hyper 212X
GPU: GTX1070 when it comes out
RAM: 2x8 DDR4 2133Mhz CAS14
Motherboard: Z170-A
Storage: 1TB HDD + 250GB SSD
Case: NZXT S340
Power Supply: XFX XTR Series 550W 80 plus Gold

and the question is in my case that has 2 exhaust fans, 1 rear and 1 top and I'm planning to overclock in the future should i get 2 intake fans in front? and if so what are some cheap good fans since i can't go much higher on budget?

 

[xD3aDPooLx]

If you plan on overclocking, then Yes add 2 more fans to balance the airflow out in the case.