you shouldnt be buying a core 2 duo processor period. its 5 years old tech with no upgrade path. If your looking for a cheap dual core that is overclockable and has good cheap motherboards, look at AMD Athon II or Phenom II. You can get a quad core AMD for the same price as a Core 2 Duo.
Welcome to the forums, newcomer! the reason we all want you to go turn the pther cheek is cos the duo's are long of the past. Unless you can tell us that your proc was given to you as a gift (though highly possible its a dead gift), have spare DDR2 ram dimms, and the rest to go with the motherboard that best goes with a core 2 duo. You didn't mention the Proc series btw...?
ah you know what?!+5 to iam2thechrowe - point, set and match. case closed.