First thing to remember is that its against Blizzards TOS to buy and sell accounts.Of course, it doesn't really matter if account gets suspended after you make the sale.I been playing wow off and on for about 5 years, I sold and bought accounts several times without problems.Infact, I know many players who make decent money building toons up and later selling them.
Things To Do Before Selling
-Remove all personal information and credit cards from account.
-Remember secret question and answer(you need that to sell account)
-Change Email
Here are the two most reputable websites that buy wow accounts.Both accept PayPal.
www.buymmoaccounts.com
www.playerauctions.com
*Update
Here is a detailed on how I made $300 dollars profit in reselling my accounts
http://pookiestopmoneymakingwebsites.blogspot.com/2011/09/how-to-make-money-playing-mmos.html
