Don't get the PG279Q, suffers from poor quality control and backlight bleeding, as does the 278Q.
The Acer XB271HU offers a much better panel with better color reproduction and more solid build quality.
It also offers the 165Hz overclocking present on the PG279Q for reference, and is better than it in almost every other aspect.
Usually goes for $749, but is currently $799 due to increased demand. Newegg are getting stock in over the next week.
See here:
http://www.newegg.com/Product/Product.aspx?Item=9SIA3FA3Z91993