Scott Hanselman has a great guide on how to migrate multiple people (in this case, his family) to "Google Apps for Your Domain". The conclusion? Third party tools (purchased and/or free) are still required to accomplish this feat but it was well worth it in the end.....especially considering that many of us have accidentally fallen into the role of "family computer guy". Imagine if all family (or small business) accounts were Google accounts under their "Apps for Your Domain" program. Life would be easier.