Choosing a PSU, Coolers and Case

[Entrt4inment]

Well here are the specs I would like for the PC I will be building and I am intending to use ut for gaming like Battlefield 4 maxed out and YouTube and making intro videos in after affects.

GTX 760
i5 4670k
8GB Memory @ 1600MHz
Motherboard Z78-A (although I don't know about this so if possible advise me on the motherboard too)

Those are my specs and all I need is a PSU, cooler and case and I'm ready!
I will be overclocking so I need a powerful PSU.
If there are any sites where there are sales on these parts (or sites where sales do go on) please let me know. Also is Newegg safe to buy from in the UK? I will be buying these parts as cheap as possible over around 6 months so I have time to look for sales just tell me the sites to chekc out.

THANKS FOR READING and any help is GREATLY appreciated.

 

[zeph_yr]

I'm assuming you meant Z87 as the motherboard.

CPU Cooler: Corsair H80i 77.0 CFM Liquid CPU Cooler ($84.99 @ Amazon)
Case: Fractal Design Define R4 w/Window (Black Pearl) ATX Mid Tower Case ($99.99 @ Newegg)
Power Supply: Corsair Professional 650W 80+ Gold Certified Semi-Modular ATX Power Supply ($103.98 @ Newegg)
Total: $288.96
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-20 18:23 EDT-0400)

You didn't state a budget so I went with a mid to high-range combination.