I want to do the very same as tomfg, and I did get globalmapper downloaded, but I read and read, and it seems (although I didn't understand a lot of it) to do a lot more than we are looking for. I didn't get to do any playing with the product, because I couldn't seem to connect with the Canadian sources after I got the program. I had my omputer in for repairs in the middle of this, and I think now it must be the rural phone lines, 56k connection that is my problem. Would it be possible to create a barebones product that just did what we need? I have a Garmin 12XL, should I be looking at OZZI program? Is that all we would need to accomplish our goal?