I just bought a P4 3.2 ghz...very nice and fast, it says 2 CPU's in dxdiag but im not sure if its dual core.... ANYWAY, Pentium D will be good for future gaming because next gen games like Unreal Tournament 2007 and Oblivion will certainly look at dual core processors, but Pentium 4 3.2 ghz has hyperthreading, so it is good for games now. It also depends on how much ram and the video card aswell. Both should do you fine, although i think the Pentium D will last you a bit longer. If you're not a gamer, just get the cheaper one, they are both good.