I have a Garmin 76csx and Zumo 660 I use for motorcycles and looking to buy another one for another dual sport motorcycle. I have used POI-Factory.com for quite a while but this site looks to have some very useful information.
Yes it is a great find. I use a Nuvi 500 on my ATV and topo maps from this site. I also find the Land ownership maps and the trails overlay to be very useful.
Amy questions of problems will be answered quickly from the knowledgeable people here.