I would recommend you using i7 3770k since it has hyper threading ht is for rendering, but reduces game performance (about 10%), i7 3770k is quiet the best option for video editing, i think that you should get it watercooled (maybe h90/h100) to get the most about your cpu, but if ur 100% sure that you are not going to oc, the go for the locked version of i7 3770 since ur not going to overclock it but i highly recommend you to buy the 3770k version with decent water cooler, but if you don't want it you should at least buy a decent air cooler, hyper 212 evo is a good option.
Good luck