Think I'm in your boat... When I went to create my account, apparently my email had an existing account from I can't even remember when, and now when I play multiplayer I'm stuck with my stupid name, I woulda created another account just so I could have a more appropiate name, I think it's an AIM name from like college some 6 or 7 years ago. Makes me feel pathetic...
And I don't think I can create another account for a different name since you have to plug ur CD key upon creating it... So I would assume it's linked and it wouldn't allow you to use the key for a different account. Guess I have to live with this name, really wanted MrDingleBerry 