just a thought , but I got an AMD x3 440 last week , overclocked it to 3.5 ghz and according to P.C wizards cpu test , it beats the i5 750 .....for a third of the price I think this is pretty good ..
if I were you though I would probably go for an AMD 6 core cpu , for around the same price as the i5 it will surpass it in almost everything