I chose not to do PBAP. The program cost runs around $4k and I could not justify the expense, as Campbell and Elon were pretty even for me. Just received a letter declining admission as a result.
Are you looking for 2008 or 2009? I would highly recommend getting your applications in ASAP (hurt me). I've heard applications in general have increased significantly this year, as the market is down (trend will prob continue).
Good luck. Where are you considering?