I was wondering if I should use the stock heatsink that came with my i7 3770k or a 212 EVO? I will not be doing any overclocking until later this year (I will get a new heatsink by then). All I will be doing is playing games like BF3 and Skyrim, photo editing, video editing, and that's about it. Will the stock heatsink be okay for me since I will not be overclocking with it? Will my temperatures be okay?
My i7 2600 idles at about 30°C with the stock Intel heatsink. I do basically the same stuff as you, and I never have really felt the need for a aftermarket heatsink. Many other people just use the stock and it works fine for them. So you are probably fine with what you have for now