I heard the temperatures rise more easily when overclocked (which involves tinkering with the voltages). As long as you have the CPU cooler to support the overclock and keep the voltage reasonable I don't see any issue.
Consider the Hyper 212 if looking for a moderate overclock. If considering a very high overclock which is near the limit for the 3770k then go high end air cooling or maybe even custom water cooling if money is not a problem.
I have the i7 3770K with a Cooler Master S524 and I don't understand why people say these chips run hot, they have a max of 105C, and mine stays under 80C even when I overclocked it to 4.7 GHz. You don't need to waste your money on a water cooling solution, just make sure you have high airflow through the computer case.