Barry Bonds plans to add an attorney to his legal team before his federal court appearance next week, the slugger's longtime business affairs lawyer said Thursday. Michael Rains has represented Bonds since the home run king first was subpoenaed in 2003 to testify in front of a grand jury investigating performance-enhancing drug use among elite athletes. Bonds is charged with lying to that grand jury when he testified he didn't knowingly take steroids and is scheduled to make his first court appearance Dec. 7. Laura Enos, who has legally advised Bonds on business matters since 1997, said Bonds was negotiating with a high-profile lawyer with federal experience to help in defense against five felony charges of perjury and obstruction. She declined to discuss names, though San Francisco attorney John Keker's name was mentioned throughout the legal community here as the likely candidate.