Dell Ultrasharp U2713H 2560x1440 (Great for Photography + Design)

Great high resolution monitor for those that are really serious about color or just more screen real estate

From their website:

Get exceptional screen performance with Dell PremierColor

Consistent, accurate hues: Experience stunning color precision right out of the box with factory-color calibration.

Industry color standards: Meet professional design standards with 99% Adobe RGB and 100% sRGB at a deltaE of less than 2.

Custom color adjustments: Tweak shades to your preference of saturation or hue with Dell Custom Color. Or choose to further calibrate the monitor with the optional X-rite i1Display Pro colorimeter, which allows you to access a 14-bit LUT (look-up table) via the Dell UltraSharp™ Color Calibration Solution software.

High-color gamut and depth: A 120% color gamut1 and 1.07 billion colors helps enable smooth gradation of color and razor-sharp details.
Dell U2713H Monitor
Enhance your overall viewing experience

Multiple connectivity options: Connect PCs and accessories seamlessly with USB 3.0, DisplayPort 1.2, mini-DisplayPort, DVI-DL (HDCP) and HDMI.1

Flexible viewing: Adjust the monitor to your most comfortable setting with tilt, swivel, pivot and height adjustability features.

Dell Display Manager: Improve productivity with Smart Video Enhance, Auto Mode and Easy Arrange software applications.