Re: AMD Black Edition
Yes, most CPUs have an OC potential. Some more than others. The Athlon X2 5600+ can be overclocked but not too high. As you've mentioned, 3.2GHz is probably the most you can OC it without running into trouble (if you get that lucky). Most likely, you'll hit around 3GHz-3.1GHz being stable. Not significant to me, but ok regardless.
*Fact: Microsoft Window's Blue Screen of Death vs Computerforums.org's White Screen of Death. Which is worse?