The beginning of this year I was involved in integrating Dynamics GP and Dynamics CRM. I, of course, used Scribe Insight as the integration tool.
For the integration I did use some of the logica provided in the Scribe templates for Dynamics GP. I never did use Dynamics GP before January and still know only some basic feature. The only book available in Holland.. don't laugh.. the Dummies edition for Dynamics GP.
During the process I did find the blog of Victoria Yudin very usefull and used lot of the tips and information for the integration. You should check it out at victoriayudin.com/.
At this moment working on migration from GoldMine to Dynamics CRM.