See if you cant find some X-530's as they are 25 bucks cheaper or so but they are really nice.
There are many ways you can cut cost. Go with a cheaper CPU cooler such as a Big Typhoon or so, even an Arctic freezer Pro 7 will work fine. Those are only 28 bucks on Chiefvalue and you don't need extra Paste.
The case is good but it could be overkill...the Gigabyte Aurora is just as good and also Full size.
Go with a Cheaper 680i as they all support 2 PCI-Ex16 slots.
There are many ways to cut costs and I believe the motherboard is the best way since I hate SLI.
SLI is just a waste of money and causes heat problems, takes more watts, and isn't worth it in the end.
Plus by not going SLI you can get a cheaper PSU for 90 or so.
You say you are deep in your wallet already but all the parts you have chosen almost are the best and don't have to be.