Which PSU would be suitable for this build?

[Noioiy]

I'm building a new PC and am not quite sure which PSU would be alright for it.

The specs are

AMD FX 8350
Gigabyte 970A DS3P
Cooler Master Hyper 212 EVO
G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory
Zotac GTX 970

The thing is, I've already bought a PSU a month back and it's a Corsiar VS 550
I was considering a GTX 750ti at that time and the VS 550 was apparently enough.
Today I went to this place I'm gonna buy the parts from to get an estimate price of the whole thing and the representative there told me that I'll need a 650 Watt PSU.

Do I really need a 650 Watt PSU or will the VS500 get the job done?
I wont be running a liquid cooler and have already consulted a lot of the power supply calculators available online and all of their results were below 500

So should I just go get a VS 650 or stay with the VS 550?
If the VS 550 cant get the job done I can always go get the 650 later on.

Let me know if I missed out any components.

 

[Forever Oleg]

Do not even stay with VS power supplies. They are very low quality.

Get something like Seasonic S12ii 620, EVGA B2 750W (It's on sale for $65 right now) or any PSU from EVGA GS or G2 Series - high quality units.

 

[Deleted member 1989455]

Yeah forever Oleg is right don't go with a VS power supply.

I recommend getting the EVGA SuperNOVA 650W 80+ GOLD Power supply

http://www.amazon.com/dp/B00K85X2AW/?tag=xov-20

 

[Forever Oleg]

Yeah forever Oleg is right don't go with a VS power supply.

I recommend getting the EVGA SuperNOVA 650W 80+ GOLD Power supply

http://www.amazon.com/dp/B00K85X2AW/?tag=xov-20

Please, no. The G1 Series is the Gold NEX Series. You can get better for the same money. Once again, a PSU from the GS or G2 Series that will be much higher quality than the NEX.