The more I think about this mapping stuff and the ability
to connect to my computer I wonder, since the price
is not all that much different, if a GPS unit like the
Standard Horizon NAV-50 might not be the best choice.

Anybody here have or used a Standard Horizon Magnum NAV-50
handheld GPS. It seems to have all the right bells and whistles
and comes with three CD ROMS with C-MAP marine cartography
also roads and cities (US) 31,000 nav aids can be loaded
into 5MB internal memory. WAAS enabled, Three year warranty,

It's called a Nav50 in the West Marine catalog but it seems
to be called the Nav 40 elsewhere. Maybe the 50 is the latest
version of the 40??

Here's a link: http://www.adventuredriven.com/manav40hagps.html

Here's one for West Marine:
http://www.westmarine.com/webapp/wcs...roductId=69987

Given all the features and good warranty it sounds hard to beat.
I wonder about input, however, I can see only three buttons.

S.Simon