Yahoo Winners Is it true ?? Help needed

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Today I check my email and i was surpise, Yahoo send an email to me and said i won 500USD !!! Im so happy then i click in to the email. It said that i have been random chosen to be one of the 12 top winners by Yahoo and get the 500USD prize. Of course i happy get free money, but i also feel suspicious of it so i see the address that send me this email (yahoo.winners@yahoo.com) I think yahoo wont send and email that using the registered email under his company -.- But however i also click on the link that he give. It takes me to another website that same with yahoo homeage and a form for me to register for the payment. When i click on it, I goes to another yahoo website that said me havent become a Yahoo! Games member and told me to register 1st to get the payment within 3 minutes. What i dissappointed is when i register it he call me to pay 8.75 USD to a account in E-gold. I dont know is it true or not but I already feel that this like kinda of cheating. Hope all the friends here to beware of this email.I didnt pay for it cause my sense tell me this is cheat emails. Did someone here got the email?? What u get after u paid?? Help needed