FHD on 15" screens are often more comfortable for editing
Photo and video editing would benefit from greatly from a powerful CPU and lots of RAM (and of course a good screen)
Can try these:
15.6"
Asus N550JV-CN077H, i7-4700HQ + Nvidia GT750M + (1920x1080; IPS matte)@RM3699[2.7kg], 4GB, 1TB, W8, backlit keyboard

Dell Inspiron 15R (Special Edition), i7-3612QM + AMD HD7730M + (1920x1080; anti-glare) + 32GB SSD + 1TB HDD(5400rpm)@RM3199, 8GB, backlit keyboard optional, W8

Lenovo Y510p, i7-4700MQ + Nvidia GT750M(GDDR5) + (1920x1080)@RM3099[2.7kg], 8GB, 1TB, W8, red backlit, swappable ODD, 120w psu, 2 yrs

MSI
GE60-2OC, i7-4700MQ + Nvidia GT750M(GDDR5) + (1920x1080; anti-glare)@RM3599,8GB, 750GB(7200rpm), W8, steel series KB
GP60-2OD, i7-4700MQ + Nvidia GT740M + (1920x1080; anti-glare)@RM2999, 4GB, 750GB, W8, steel series KB

Since you are not into gaming, I would recommend going for the MSI GP60-2OD or Lenovo Y510p. Use your remaining budget to extend warranty to 3 years; upgrade RAM to 8/16GB; and most importantly, swap the HDD to an SSD.
THe SSD will bring about an extremely huge performance gain in load times, will save you a lot of precious time