With the price of the processor and adding a aftermarket CPU cooler for the overclocking your better off just buying a i3 4170 it will give you better performance, also that motherboard does no support 1866 memory.
For the power supply I would buy a 450 Watt of good quality Seasonic XFX, or a 550 would be about the same price this would allow for future upgrades.
The 750 video card is not a good buy and really poor gaming card you should be able to find a 750ti in the same price range.
If you build the cheapest junk you can buy then that's what you have.
This is the cheapest I would recommend for a gaming PC.
http://pcpartpicker.com/p/jMwKjX