Run the pre-upgrade scan tool (Office SharePoint Server)
Migration and Upgrade Information for SharePoint Developers – http://msdn2.microsoft.com/en-us/office/aa905505.aspx
Migration and Upgrade Information for SharePoint Server 2007 (Infrastructure orientated) – http://technet.microsoft.com/en-us/office/sharepointserver/bb421259.aspx
And for gradual upgrade options (http://technet2.microsoft.com/Office/en-us/library/0c0e7bb9-8a81-4007-824b-688e8eba23ff1033.mspx?mfr=true)
Yo ho ho :-)
PingBack from http://geeklectures.info/2007/12/18/upgrade-tips-for-sharepoint-2003-to-moss-2007/