Oh and another thing. I am planning of getting a MSI P67A-GD55 as a motherboard. Is there a limit to how much this motherboard will be able to allow me to overclock the 2600k?
I've heard that motherboards can affect how much you can overclock, so I am not too sure about what the scenarios might be if I get this mobo.
Be sure that cooler fit in your case, I'd try to go with something more bigger HAF 932 maybe, or 690 Advance II.
Regarding the mobo, I 'd go for ASUS, Gigabyte, MSI or EVGA in that order. What is the limit? As much as you can with good temps and without kill the chip.