I guess it would depend on what the budget is and whether or not you want to save any money or if your ok with the parts you have selected and the fact that they are a bit pricey and you can get less expensive parts to do the same thing.
The build is very nice as you have listed it and will be a great working computer. The parts I was refering to are the motherboard and the psu. Both are very nice parts and top quality , the Sabertooth is very good and a less expensive MB can be used but if your happy with the cost then fine go with it. The psu is also very nice and top quality but if your going with one card then you can use a 620w for the 670 , but again if your ok with the one you chose then great you have selected a very nice psu that should serve you well.
So again it's a top quality build with no issues and should be a great computer.
Well it's like I said earlier that the Sabertooth is a very nice board but I feel it's a little gimiky with that tuf-stuf and the features are what's important and the two boards listed here are similar in that you can SLI and have the same sata connectors and ram slots for $50 and $60 less.
But as I also had said it will depend on if you are looking to save any money or if your happy with what you chose.
If you went with the $60 savings and put that money towards a cpu upgrade you could possibly get the i7-3770k , or put it with the video card and get the 4gb 670.
I don't know how close you are to the budget limit but getting a i7 cpu is not a bad idea.