Wait about a month or two. Garmin is putting out the GPS 76C and 76CS. They are both COLOR handheld GPS, with 115Meg of memory so that you can download an entire Bluechart disk to them. The CS version also has a compass (works standing stil) and baramoter. The have a submersible rating (1 meter for 30 minutes) however, that rating does not cover rain penetration or water spray so they recommend putting it in a bag anyway. List is $550 or so but Ive seen it at preorder prices of $450 US.