Got the same email a week ago. A guy named Davis, claiming to be a president of "big" development company (elitenethosting.com) wanted a domain of mine that is a typo of streamate.com, offered $5k , lol :-D
Then he sent me a fake forum url where they had "discussed" about domain appraisal services:
http://www.domainexplorer.org/Archive/92735216.htm
All mentioned urls had the same registrar (godaddy) and hidden whois.. what a strange coincidence. I told him to fuck off. Too bad I do not have the time to report him to godaddy.
Looks like scammers are working hard these days, there is already one scam thread in here.