What is the best power supply for 100-160$ For crossfiring f

Wsasx2

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Jan 18, 2014
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So I'm getting a sabertooth 900fx mobo
cpu amd 8350
Crossfiring two amd 7970 cards
What psu should I get and how do I know if they're compatible next time?
So around 800 watt to 1000 watt I also will have two hard drives, 16 gb of ram and 5 fans
So what psu would be good in that range?
if I'm correct 800 watt to 1000 is about a good range for two powerful cards and a powerful cpu and the stuff I said
The ram I have are 4 stick 4 gb each of them 1333mhz as well