http://cgi.ebay.com/NAVIONICS-NAVPLANNER-SER-3-17-WIN-XP-2000-CD-ONLY-U78-/260786468758?pt=GPS_Maps_Software&hash=item3cb815b796
This is a awesome prefishing tool.
You can basically use this program to view your Navionics chip from your home computer...
FYI, I am a equal opportunity offender.