Complaint Review: Merchants Express

After posting an ad for my computer on craigslist, I got an email asking for the firm price, I told them, and the lady agreed to pay that plus 100 for shipping to her son who was abroad in Africa. She wanted me to send it ASAP because his birthday is in two days. I received an email saying that the money was recieved and it would be sent to me as soon as I sent confirmation of my item being shipped.
Thank God for this website. I figured it was wierd that she never asked for a picture of the item, or of it's condition. When I told her I wasn't comfortable dealing with Merchant Express she said that I had her money and I was trying to scam her. If Merchant Express is legit then I'm sure she could get her money back. I told her she could send a money order or a cashiers check to my home adress and I would send the computer as soon as it arrived, but she insisted that we use Merchant Express. I told her I could only deal with money in hand, and she said she doesn't have any money to sent and that "they" took it. Not sure who "they" are.
The email I was told to send my confirmation of shipping to was merchantexpresspost@mail2consultant.com
so watch out if you see it.
Also, I told her I knew it was a scam, about the reviews I read, and also that I have reported her and not to email me again. She has not.
Look out.