The 76CSx uses the exact same firmware and basemap as the Vista Cx.
It is a much larger with a larger screen. The size of the unit can be a plus or a minus.
It has the buttons right on the unit while the Etrex generally has them on the side.
The 76CSx I think comes with a 128mb micro-SD card while the Vista comes with a 64

But the big difference is that the 76CSx uses the brand new SIRF III chipset which is supposed to be much better in keeping a lock in dense environments Geocachers believe the 76CSx and it's very close cousin the 60CSx are the best units on the market.

For an extra 60 bucks..... I would get it although you won't go wrong with the Vista Cx either.

I couldn't find Fannin, GA on my GPS map nor on my Street Atlas program but figured that Blue Ridge, GA is the town. The only road the basemap shows within 15 miles is US 76. The basemap is just that, a very basic map.

In my dumb wisdom, I've lost where the program on my computer is to upload bitmaps from the Garmin unit so I apologize for a lack of a snap shot.