Does anyone know of any Yahoo Personals scammers that the rest of use should be aware?

I recently was contact by a person using the e-mail address kelceytruelove@yahoo.com. At first there was nothing to suggest this was a scam because the profile that was posted was well written. The person claimed to be an american woman on a business trip in Nigeria purchasing African artwork to sell in the United States. Of course, I knew something was not right when Nigeria was mentioned due to all of the scams coming out of that country, but I gave the benefit of the doubt because there are people who travel to various locations to purchase artwork to sell in other location. However, it was by the third e-mail that the good grammar went away and the writing style changed to suggest that another person was contacting me, and I was also told that she did not want to use Yahoo's Instant Messenger and could only be contacted by e-mail. This would suggest to me the person or persons was keeping track of what I was writing to keep their story straight when I asked any question to previously discussed topics. Nearly a week later, this person contacted me with this sob story about how she was robbed of all her money and valuables and did not have the money to pay her hotel bill so she could return to the US as planned that day. She claimed that her uncle loaned her $650 for her $1650 hotel bill and ask me to send her another $650 to pay for the rest. See the problem with her math? No, I did not send her any money and I reported "her" as a scam artist. My question is has anyone else seen this e-mail address and/or similar situation before and willing to share to to help other people avoid this scam artist?