That's all well and good, but op is considering building a dual quad core processor system, and since Intel has its FSB and AMD has HT, HT wins hands down as far as bandwidth is concerned. That advantage could change depending on intended workload, but until Intel releases Nehalem with quickpath, they can't compete on multiprocessor systems where lots of data needs to be shared.
Unfortunately, none of the PTS tests are of much relevance when we start talking server use that would exploit SMP systems and show the bottlenecks that FSB has. Start getting some VM / SQL / apache and the likes tests in there and then you could potentially start seeing the difference.
I don't see the point in overclocking when the goal is to compare two competing products. Besides, the Phenom doesn't overclock as well as Intel CPUs, and few people overclock their processors in the first place. Moreover, it requires somewhat expensive equipment (high-end motherboard, third-party cooler, etc…), and it's not exactly simple. When I see the comments on hardware articles, I get the feeling people who read them only care about overclocking their systems… Me, I want to run my CPU at stock speeds and use Cool N' Quiet/SpeedStep, in a reasonably quiet PC. Too bad my motherboard doesn't lower voltages when throttling the CPU's frequency (I've mailed Gigabyte about this, I'm still waiting for an answer).