Yep, looks like Buy.com have messed up a promo a bit, they are giving away a free domain from go-daddy with every purchase, but you dont actually need to buy anything to get a coupon!
Just go here:
Click Redeem Coupon, and it will add it to your basket, then go to checkout and create an account if you dont already have one, and then complete the transaction. You wont be asked for a credit card number or anything, and then within 48 hours you should have an email with the coupon in it waiting to be redeemed at godaddy!!
This may not last for long so you better be quick.
Tellem’ Atariboy sent you!!
Forum thread about it here….
Edit: Buy.com caught on, its not free anymore, you have to spend at least $0.79, still a domain for that price is pretty good.