By the way, one of my concerns with the Garmin eTrex lineup is that, at least to my knowledge, it does not provide a connection for using an external antenna.

They're great units, but I never understood why they didn't include an ext. antenna connector.

I also never could get used the not having labels on the buttons, but that's just because in my old age I just can't remember where the .... uh .... what were we talking about?!