Can anyone recomend a good PSU for this system?

TGWTHF

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Mar 25, 2012
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I'm going for a:

XFX HD 6870 GPU
i5 3570k CPU
16 GBs of ram
2 TB harddrive
MSI Z77A-G43 motherboard
IN WIN DragonRider case which has a few built in fans


but im not sure on what PSU to go for, Corsairs website listed that i go for any of their PSU ranging from 550W to 700W... I was going for thw 650TX v2, but i was hoping to get something a little cheaper, as the cheapest site i found with it has been out of stock with that PSU for a while now.... can anyone recomend any better/cheaper alternatives to this PSU that are on UK websites?
 
A good quality 550W PSU is sufficient for that build. The XFX PSUs are on sale here in the states. They're made by Seasonic and are awesome PSUs - get the 550W and you'll be good to go.
 

TGWTHF

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Mar 25, 2012
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10,630
will that cater to small graphics card upgrades in the future? or would i need to get a new psu as well?