Your board only supports up to 95w processors so a 965 is out of the question.
For a phenom II x4 the best is a 945 or a 960T
P2 x6 would be a 1065T
FX series = 4100, 4150, 6120, 6300, 8100, 8120, 8140, 8300
I would throw in another $20 and get the fx6300