I purchased the Asus VE278Q on sale for $350 after testing numerous units including the two mentioned above. The VE278Q is the newer LED version of the VE276Q. The Samsung P2770FH is also a good monitor but, personally, I didn't like the colors. Also tried the high end Dell U2410. They say its great when you are lucky to get a good unit. Well I must have got a bummer. Uneven color cast, green or purple banding, and the inability to correct the flaws with any type of calibration.
Anyway I settled for the VE 278Q at less than half the price. Remember its a TN Panel with all the faults that entails.
Asus VE278Q - DigitalVersus