Compatibility check, Graphic Design, CAD

Building a PC for Graphic Design, CAD, PS use. I'm pretty sure they're all compatibile, Just want to be 100% before I purchase everything.

CPU - http://www.newegg.com/product/product.aspxItem=N82E1681...

RAM - http://www.newegg.com/product/product.aspx?Item=N82E168...

GPU - http://www.newegg.com/product/product.aspc?Item=N82E168...

Mobo - http://www.newegg.com/Product/Product.aspx?Item=N82E168...

PSU - http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Case -http://www.newegg.com/Product/Product.aspx?Item=N82E168...

HDD - http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I've read that RAM over 1333 voids the 2600k's warranty, does the same apply to the 2700k? If so, what is the risk of 1600 RAM damaging an i7 2700k?

I want a case with good-very good airflow that can fit a 12" gpu. This case seems to be big enough. It also fits the airflow criteria, as I'd like to OC in the future.

Also, someone on another forum recommended a 750W PSU(For future Crossfire, I don't plan to do this.) A PSU calculator recommended around 400W. to go from this to a 500W would be $40 less, if i got a cheaper case, too. So I think this is a better deal.