Socket AM3 - AMD Athlon2 x2 250 (3.0) $79

Socket 775 - Core2 Duo E7400 (2.80) $145

Socket 1156 - Core I3 530 (2.93) $145
Socket 1156 - Core I5 750 (2.66) $239
Socket 1156 - Core I7 870 (2.93) $659

Socket 1366 - Core I7 930 (2.80) $339