Just to let everyone know, I-- like I suspect many have in the Halo community-- been receiving email that loudly proclaims that it "is not spam" from a site called GiftStakes.com, and announcing that you've won an Xbox, and all you need to do is claim it from their website.
If you follow the link, you'll be asked for a code from the email, and taken to a page to enter your name and address.. and then they'll ask you to pay for the shipping and handling of your prize. Debit card is the only payment method accepted.
There are a number of things about this that are extremely suspicious, and unless you're willing to part with that shipping and handling fee on the off-chance that this is legitimate-- perhaps risking much more if your debit card number is abused in any way-- I'd advise against taking advantage of this "offer".
Although the site itself looks quite professional, with picture of supposed prize winners from June, July, and August of this year-- the domain giftstakes.com where the site is was registered through GoDaddy only three days ago.
That debit cards are the only accepted payment method is also suspicious; as you may already know, most of the mechanisms in place to dispute a fraudulent charge to your credit card don't apply to debit cards.
The registrant for the domain is one "Domains By Proxy, Inc" which lists as its only address post office box in Scottsdale, Arizona. Complete information is here:
Private, Registration
GIFTSTAKES.COM@domainsbyproxy.com
Domains by Proxy, Inc.
15111 N Hayden Rd., Suite 160
PMB353
Scottsdale, Arizona 85260
United States
(480) 624-2599
If anyone has actually received a prize from these people, we'll gladly post that this whole thing is above-board, but at the moment I'd urge people to protect themselves and not participate in this unless they are prepared to be duped.