P4 vs C2D

Will a, say, 2.00gHz Core 2 Duo make a significant difference over a 2.4gHz P4 without overclocking? Relatively new to CPU upgrading, and I don't want to spend $200 for a tiny difference when that could go into my gfxcard fund.

>>4
Overclocking is not for everyone.
List of people for whom overclocking is not (partial):
1. People who don't know the differences between P4 and C2.

>>7
That's a shame. Kill yourself.

>>13
Fail. Save, buy everything together, ??????, profit.