Fwiewwwww, I'm so glad FINALLY someone is using Macs and thus the software that goes with it for GPS's...!
I also bought the GPSy-software, and I agree: easy to use, quick to get started.
Coping with the same map-problem though.
I enquired at IGN (the Belgian National Geographic intitute - http://www.ngi.be). They recently issued a CD-ROM for Belgium which uses/is calibrated already... BUT, again, for PC only.
They do sell scanned (uncallibrated) maps, but the prices are exuberant, so not an option. Meant for professional use and commercial applications.
So back to square one: scanning and callibrating "on the corner of the kitchen table".
I did make A4-scans of my own area (of an IGN 1/100.000 map). I'm a graphic designer and used to do precision work... but it was/is hard, very timeconsuming, and still frustrating in the end.
A scanner (well maybe not the VERY expensive ones) always has some deformation on one or the other side, so even thoug you get your map 100% straight, you have "to compromise" somewhere, meaning loosing accuracy for sure.
THEN comes the callibration. Didn't work; the waypoints that I shot in the field ended up 2cms below the roads. At least the offset was regular, so I ended up callibrating the map toward the reality... One has to be creative ;-)

Next step is
a) continuing to try to find maps scanned in one piece
b) riding to three corners of my map(s), shooting waypoints, then calibrating the map towards this.

Keep us posted on the Mac/GPS issues. If I find something revolutionary, I'll do too.
Enjoy the weather these days in Belgium Fireboomer (though that's all QUITE UNimportant for the moment... sigh... :-(((

Trui

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Iris and Trui
2 belgian women, often travelling on motorbikes (now on DR650SE's)
2nd overland from home to Northern India and back, April-October 2002

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Iris and Trui
2 belgian women, often travelling on motorbikes (now on DR650SE\'s)
2nd overland from home to Northern India and back, April-October 2002