Am I right in saying that bigger cache generally means faster response time? I heard that ivy bridge has issues with overheating or getting hot really quickly so I didn't think I should get it. Although I'm not planning on overclocking yet so will it be negligible?
heat is not an issue when you have a decent cooler like H100 or antec kuhler series but they will cost you a little a higher, i5 3570k is now ultimate solution for games as well as for editing etc, but i7 3770k is more better in editind,rendering etc.
i5 3570k with hyper 212 evo = 4.3ghz
but as you clearly mention not planning for overclocking then you listed component is way better.