Help. mb, case and checks

[adzx]

Hello,

I've chosen there parts for a new rig:

2 Radeon 6950's:
http://www.amazon.co.uk/gp/product/B007OYS4R6/sr=1-6/qid=1335378556/ref=olp_product_details?ie=UTF8&me=&qid=1335378556&sr=1-6&seller=

1 600w psu:
https://www.aria.co.uk/Products/Components/Power+Supplies+-+PSUs/Non-Modular+650W+or+less/600W+be+quiet%21+Efficient+Power+80PLUS+Gold+Power+Supply+?productId=45780

AMD Bulldozer cpu:
https://www.aria.co.uk/Products/Components/Processors+-+AMD/AMD+FX+-+Socket+AM3%2B/AMD+Bulldozer+FX-8150+3.60GHz+%284.20GHz+Turbo%29+Socket+AM3%2B+8-Core+Processor+?productId=46821

And this dark rock cooler:
https://www.aria.co.uk/Products/Components/Coolers+-+Air/CPU+Coolers/be+quiet%21+Dark+Rock+Advanced+Quiet+CPU+Cooler+?productId=43590

I already have the Ram and HDD, all I need is help with finding a case and motherboard which would be able to fit together with the rest of the parts.

Also, would these parts work together, and should some of the parts be changed?

 

[adzx]

Also, are there any cheaper options for some of the items?

 

[foscooter]

Case: Antec Three Hundred Two

Mobo: Anything Asus that supports the CPU and x8/x8 Crossfire.

I think if you plan on 2x6950, you need a bigger PSU. I don't know where to check.

 

[adzx]

Would this Mobo be acceptable?
http://www.amazon.co.uk/Asus-SABERTOOTH-990FX-ASUS-AM3/dp/B0053GR2HA/ref=sr_1_1?s=computers&ie=UTF8&qid=1335385357&sr=1-1

And how much wattage would I need?

 

[adzx]

Derp, it's two 7950's not 6950's.

 

[adzx]

Double derp, two 7850's not 7950's.

 

[foscooter]

Sabertooths seem to be popular lately.

As for the PSU, there is a calculator out there, I think on newegg.com, or Asus.com. Google "PSU calculator."

 

[adzx]

Alright, thanks. It seems I'll need 850W.