Why would you get a 3570K without OCing it? You would save some $$ if you pick a non K chip. The K designation means that the multiplier is unlocked and you can overclock it.
If you stick with the 3570 K I recommend ASRock's Extreme4 or Extreme6. You can do a mild OC with these mobos with the UEFI interface in BIOS or on the desktop.