We were pleased when a test system powered by the all-new Pentium D and the Pentium Extreme Edition made it into our test lab. Our comprehensive test suite pinpoints what to expect from the much-anticipated dual core technology.
I'd just go AMD or Core 2, the former having a much lower power draw and great overclocking potential than what you have here. My relative used to run Intel Extreme Editions like this, and the power draw was immense, he had to use water cooling. In the end he ditched it and got AMD. Not trying to say one is better than the other all the time (ie for media encoding the Intel was great), just some ideas to consider. Cheap dual-core AMD's based on AM2 are hard to beat at the moment.