Standard Horizon makes some half decent radios for the marine environment. Here's one that has some additional features (noaa, am/fm, etc).

http://www.standardhorizon.com/indexVS.c...mp;isArchived=0

Take a look at their site, some good stuff there!
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"One should not increase, beyond what is necessary, the number of entities required to explain anything"
William of Ockham (1285-1349)