I know there is a 154 that is 2.8GHz, and you know whats funny is that it's almost $200 cheaper than the FX-57, but I dont know if it's multiplier is unlocked or not.
Theres a guy on XS the G.Skill rep. and he has a 148 and when he flashed his bios the multi's got unlocked and now he has 7-13 i believe or was it a 146 i forget