I had a look at the Magellan Triton 2000 online. Looks like a nice hand held GPS, but I would wonder about reliability. If I had the chance to test one out I might be easier on it. It LOOKS good, but looks don't go before function. I'd be worried about 1) the real waterproofness and 2) the software.
Too many toys...... too little cash !!
PS- when I was in the military we had 4 out of 6 on average in the Magellan GPS units FAIL due to both of these issues. Waterproofness, and software. The units were supposed to be waterproof mil spec.... ok whatever