I'm using the III Plus for about 3 years now. I'm happy with its
performance, but hoping they improve on the accuracy of their Mapsource
products.
Scout


"Flying Tadpole" wrote
It depends which cables you have. I use a Garmin 12 (original)
and 12XL professionally. Both have cables that drive from a 12v
source AND have a serial plug for downloading. They cost somewhat
more than the cables most use which are single-purpose (ie power
to gps OR gps to laptop). A disadvantage is that when connected
solely to the laptop (office) or solely to a cigarette lighter
(vehicle), there;s 2m of serial cable or 2m of 12v cord floating
around .