h60i would be fine. i personally like the cooler master 120XL... i have one on my 4770k and it works great.
I mounted it as intake on the rear fan slot, with two top case fans as exhaust... so cool air into rad, hot air out and immediately out the top of case
the OC varies alot on the 4770ks. you can de-lid them for an extra 15degree temp drop at load, but not necesary. most just run out of juice on reasonable voltage around 4.4/4.5ghz.
some people have gotten up near 5 tho