ATLANTA, Sept. 8 /PRNewswire/ -- SunTrust Banks, Inc. (NYSE: STI) has introduced an innovative, interactive online Retirement Toolbox (suntrust.com/retirementsolutions) for businesses who choose SunTrust as their 401(k) plan provider. This new offering reflects SunTrust's ongoing commitment to enhance retirement plan solutions and proactively address the evolving retirement needs of business ...