I need (or rather want) a computer than is the best in the price range. I don't need an OS, monitor or peripherals. I have a 60Hz 900p monitor but I will probably get a 1080p 120Hz monitor later on in the year.
Sorry, but I don't quite understand what you mean. When you refer to a better cooler, are you referring to the GPU's? And that cooler for over-clocking the CPU will be sufficient, right?
I've just noticed this warning: "Some Intel Z87 chipset motherboards may need a BIOS update prior to using Haswell Refresh CPUs." - But that doesn't refer to the Intel i5, right?