Well, the question is, do you want to spend $180 or so on a processor that is a generation behind? Since you seem to have other components that seem adequate, maybe upgrading your motherboard to an AM3+ (current AMD generation) or Socket 1155 (Intel) would be a better option, for a little more money?
Intel i3 2100 - $115 (on sale from $125)http://www.newegg.com/Product/Product.aspx?Item=N82E16819115078
Asus ASUS P8H61-M LE/CSM $70http://www.newegg.com/Product/Product.aspx?Item=N82E16813131724
There are a few options out there. AMD might be a good way to go, too!