I'm wondering if I should buy a 4K monitor now. My 15 year old Dell U3011 (2560x 1600) is lacking in brightness and contrast. My two GTX 970 GPUs should be able to run games at 4K at lower performance settings. However, it might look better at 2600 x 1600. For web surfing and Photo shopping still photos I think 4K would be nice. Also, in a year or two I will probably get a new GPU that will be excellent with 4K resolution. Should I get a 4K monitor now? Will it work well running games at 2600 x 1600? Anything else I should know?