Address Verification Integration

Hi Forum!  This is my first post so please be gentle!  Seriously though, my company is interested in improving the quality of employee data entered within MSS.  To that end, we are having some issues with valid address entry.  Given some of the new ADP payroll functionality rejects bad address information, we are researching the possibility of integrating with a 3rd party address verification service (at this point, we really like the USPS web service offering).  Has anyone else done this before?  Can you share your experience and approach? Is Design Studio capable of handling a front side integration with this type of service?  Please let me know as we are very close to going down the USPS road and need some advice.  Thanks in advance!

Troy Thompson