Asus PB278Q : 27", 1440P, almost the same color reproduction as the ACD Thunderbolt.
Or
Asus PG278Q : same as the above, but comes at 100Hz, overclockable to 144Hz. This one is my daily driver. However, I'll only recommend this if you do some serious gaming as well, else, simply ignore this recommendation.
Asus PB278Q : 27", 1440P, almost the same color reproduction as the ACD Thunderbolt.
Or
Asus PG278Q : same as the above, but comes at 100Hz, overclockable to 144Hz. This one is my daily driver. However, I'll only recommend this if you do some serious gaming as well, else, simply ignore this recommendation.