I'm looking for a good m-ATX + 2006k, and ASUS P8P67-M PRO looks good to me, but I'm still a P67-noob .

I guess that OCs pretty much the same as ASUS P8P67 PRO, with same BIOS, and most other stuff would be the same too, anybody got a insight?
What's the important differences between ASUS P8P67-M PRO and ASUS P8P67 PRO?