dean, this is a scam and it's very dangerous, as another person here said they want your bank info, or they want as much info about you so they can steal your idenity.
Some of these are also ways to get into your computer and hijack your personal info, as soon as you see 1 delete it.
There's a few different variations of this scam mostly from either hong kong, china, africa and the UK.
Another scam is that Microsoft is giving away money for your participation, this also is a scam.
Another one is that you hit some sort of lottery, again this is another scam to get your private info.
Another scam that's going around is from an official looking entity like Paypal, Wells Fargo bank and others, these are dangerous because if you open the attachment it'll put a trojan on your computer and attempt to steal your info, like credit card numbers and so forth.
JUST DELETE ANY OF THESE AT ONCE, FOR YOUR OWN PROTECTION.
Rule of thumb to live by, BELIEVE HALF OF WHAT YOU SEE AND NONE OF WHAT YOU HEAR.
I HATE THIEVES AND SCAM ARTIST AND I LOOK FOR THEM AND REPORT THEM TO THE ISP's AS SOON AS I RECEIVE ONE.