Victoria Yudin has a new article up at MSDynamicsWorld.com. In her article she helps users decide the best time to upgrade to Microsoft Dynamics GP 2010.
Time Your Upgrade to Microsoft Dynamics GP 2010 for Maximum Benefit
Install, Upgrade & AdminPayroll & HRGP 2010
Archived post from 2010. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.