New PC Build

what do you guys think?
anything to change upgrade?
technical problems in part, not working with each other etc?

CPU: INTEL Core i7 4770K 3.5Ghz
Motherboard : ASUS Z87-K

Price: £339.99
http://www.ebay.co.uk/itm/151076678821

RAM: G-Skill 8GB Ripjaws X DDR3 2133 Dual Kit
Price: £57.46
http://www.amazon.co.uk/gp/product/B0050119O0/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=A3P5ROKL5A1OLE

GPU: Asus AMD Radeon R9 270
Price: £139.00
http://www.amazon.co.uk/gp/product/B00GI2XJM0/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A3P5ROKL5A1OLE

HDD: WD 1 TB 3.5-inch Internal Hard Drive - Black
Price: £54.95
http://www.amazon.co.uk/gp/product/B00FJRS6FU/ref=ox_sc_act_title_4?ie=UTF8&psc=1&smid=A3P5ROKL5A1OLE

PSU: Corsair Builder Series CX 600
Price: £47.90
http://www.amazon.co.uk/gp/product/B009RMP44O/ref=ox_sc_act_title_3?ie=UTF8&psc=1&smid=A3P5ROKL5A1OLE

Case: Thermaltake Commander USB 3.0 Snow Edition
Price: £32.84
http://www.amazon.co.uk/gp/product/B006JQZ8MY/ref=ox_sc_act_title_5?ie=UTF8&psc=1&smid=AGZZYKTT1GZVV

Total price: £672.14

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