Is there a handheld color GPS with C-map cards?
 

Have you had a look at the Raymarine A-series? This color handheld unit
uses Navionics rather than C-map, but otherwise it looks like what you
are requesting. Here's the link:
http://www.raymarine.com/raymarine/P...duc t_id=1723

Aaron Tinling
s/v Sweet Destiny
www.navagear.com

The Magellan 6000 was the only hand held unit produced that accepts
C-MAP NT, and NT+ charts.

J. McQuade
C-MAP/USA