I just got an email on this software, it looks pretty good:
http://www.bluewaterracing.com/
BLUEWATER RACING is a set of tools for tactical and strategic planning of long-distance boat racing and voyaging.
What it does:
* Display and edit routes
* Interface to GPS units
* Support a selection of chart formats, including: a built-in highly-detailed global planning chart; BSB format charts (freely available from NOAA)
* Display, examine, and manipulate multiple GRIB weather files
* Display weather images, and track your route across them
* Examine and manipulate boat performance "polar" files
* Combine polar performance data with forecast winds to estimate travel time along routes
* Compute optimal routes, combining boat performance with multiple wind forecast files of varying precision
* Track competitors
Nice find.
I think I've mentioned this before, but I will repeat here for the sake of future searches. I really like Visual Passage Planner ( http://www.digwave.com/ ) for planning. It is a digital version of 1 degree pilot charts, also has current data, and you can enter a limited version of your polar charts. It was a great aid to me in planning my transatlantic and for a couple of offshore deliveries.