What size PSU would I need for this build

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Currently running a PSU thats about 8 years old and rated at 1000w but wanting to upgrade to the following spec.

My basket at Overclockers UK:

• 1 x Gigabyte Z170XP-SLI - Intel Core i5 6600K Bundle **£20 Saving**= £298.98
• 1 x Kingston Fury Black 16GB (2x8GB) DDR4 PC4-19200C15 2400MHz Dual Channel Kit - Black (HX424C15FB2K2/1= £59.99
• 1 x Samsung 500GB 850 EVO SSD 2.5" SATA 6Gbps 32 Layer 3D V-NAND Solid State Drive (MZ-75E500B/EU)= £129.95
• 2 x Seagate 2TB 7200RPM SATA 6Gb/s 64MB Cache HDD - OEM (ST2000DM001)= £54.95
• 1 x AMD 290x

Cheers

 

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Awesome, thanks a lot for the replies guys