There were some on ebay yesterday--can't remember coverages. Check on Club C-Map--it's a program they have for upgrades, trade-ins, rentals etc. Worth the cost--I think it's $75 per year. Also check out the Nav software they have--I use it here for trip planning--pretty well done. ANother Nav software package is FIrst Mate by The Capn.
I use them to get familiar with trip before I go then load WP's in GPS and away we go. Really helpful feature is they will calculate total miles, total time, miles between waypoints and you can reverse rout with on click.