Would a 500W power supply be good enough for this build?

[pPupper]

So I'm looking to upgrade mostly everything from my PC but i currently have a 500W power supply that i think i can reuse but I'm not 100% sure.
Here is the build: http://uk.pcpartpicker.com/p/HLWJ7h

 

[Hellfire13]

wat is the psu model???...if it is anything gud from this list, it shd be enuf...
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

 

[ebonyblade2000]

I would suggest a 650W especially if you want to OC that GTX 970
EVGA Supernova 80 PLUS GOLD 650W (Top Notch PSU Tier 1)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817438054

 

[IntelTurtleFan]

Would recommend any of these. You can shop around here for better prices.
G2 is the best probably.

https://pcpartpicker.com/product/fZyFf7/seasonic-power-supply-s12ii520bronze
https://pcpartpicker.com/product/DPCwrH/seasonic-power-supply-ssr550rm
https://pcpartpicker.com/product/JYyFf7/evga-power-supply-110b20750vr
https://pcpartpicker.com/product/qYTrxr/evga-power-supply-220g20550y1
https://pcpartpicker.com/product/N6X2FT/evga-power-supply-220gs0550v1
https://pcpartpicker.com/product/2tckcf/xfx-power-supply-xfxts550w

Much higher quality and smoother running.