BIOSTAR A880G+ AM3 AMD 880G HDMI Micro ATX http://www.amazon.com/Biostar-880G-SB850-Micro-DDR3/dp/B007IXFK9S/ref=sr_1_1?ie=UTF8&qid=1349729008&sr=8-1&keywords=BIOSTAR+A880G++AM3+AMD+880G+HDMI+Micro+ATX+AMD+...
Mind that it is a micro board, but it will unlock the 4th core, for $59.99 only.