Doing more homework before buying a Garmin. I'm comparing the 60csx and the 76 csx The only differences I can see is that the 76 model floats, and a reference I don't understand In the specs, under Built-in memory the 60csx says "no" while the 76csx says "none (cannot load maps to internal memory)" Does anyone know what that means and, therefore, what are the differences in the built-in memories of the two models? CacheRcheck