Dell P4317Q

43", good size for using 4K at native resolution (non retina). And able to connect and display up to 4 source at the same time (4x 1080P). Seems a very good idea for someone occasionally to use multiple VM at the same time. So, one setup, but good for single 4K, or multiple 1080P display.

http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&s=fed&cs=16&sku=210-ahsq