I may be in the position to purchase one of these flash toys later in the year. I would be using it for both Archaeology and hiking as well as Geocaching. Quite an improvement from my Garmin Legend! It might end up travelling with me to the Russian Steppes for some work, so naturally I need the one of the best quality.

Anyway, can some of you Techno dudes please tell me what the differences are, and which one would be better for Topo maps and such details, and would work best in cover and poor signal areas? So far I know one floats and one doesn't, and the 60CSX has an external aerial where the 76CSX has an internal.

All help appreciated.