I order from NCIX, a bit cheaper than some sites. But here is MY budget build.
Motherboard:
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CPU:
You must login or register to view this content. *for whatever reason, Ivy Bridge is cheaper than the Sandy variant
GPU:
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RAM:
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CASE:
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C
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HD
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PSU:
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COOLER:
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Just a bit over budget, 654 Euros.
But you get good cooling, a cool case, great cpu and the amazing NVIDIA drivers. If you want to, swap the 560ti for a 6950. That's around 7870-7850ish level.