Quality, Easy to use program. Maps can be downloaded for free.
GPSNavX is a good program that allows intregration of a lot of information, charts, GPS, GRiB files, AIS. All this information displays on your charts in an easy to read and understand format. If your looking for a good, well thought out navigation tool, this is it.
BSB charts for the USA can be downloaded for free from NOAA or you can buy the Maptech charts from the vendor, but why when they are free. Just search for BSB charts. There are other free charts for first World countries like Canada, that are distributed through their government agency websites, you just have to search a little. For other countries, such as cruising in Mexico, you will have to purchase the charts.
Snobrdnick about GPSNavX Marine Navigation