they will have ur name, but u can change everything else.
and cancel it on ur Credit Card so dont worry about that.
blizzard doesnt like people selling accounts though, i sold my mage and had to post him 3 times on ebay cause blizzard got ebay to remove it.
im on kil jae, i might move to kilrog, if someone hooks me up with like 10 gold.... wink wink i can play any class, i played a mage to 58, warrior to 35 and now a hunter on to 19, but im on alliance now and alliance are panzy's