Just a quick note. If your motherboard is ACC capable you can enable it to try to unlock the fourth core on that cpu. You would need to enter the bios and look around. Doesn't always work but in my experience it does. Also, you could try using something like AMD Overdrive to overclock as well. If you have an aftermarket cpu cooler it shouldn't be a problem. However if it is the stock cooler I would be very careful.
Just checked Newegg, no info on ACC for this board. However some people have reported easy overclocking capabilities.
Those black edition triple core processors can be a heck of a deal when paired with the proper board. Basically you would just hit a button to enable ACC to attempt to unlock the fourth core. This can also be attempted on certain quad cores to try to unlock them to six cores. Haven't read up on that much though.
Edit: As you can see in the CPU-Z signature image I have pushed my quad core amd phenom II to 3.8. This is running on air only. So far it is stable, but as I was having crashing problems recently we shall see. Basically I had to start the overclocking process again from scratch to try to alleviate the issues. Though the problems appeared to have nothing to do with the different speeds I was testing as it happened at default speeds as well as overlocked. Next up will be the video card.