Migrate P2P to Win2003 with profiles

Greetings,

I would like to know how to migrate a mix of 50 Windows 2000 & XP systems from a Windows 2000 Peer-to-Peer network to a Windows 2003 Domain, and keep all of the local profiles on the systems so that the end users’ computers keep the sames settings, ex Outlook, My Docs etc. Do I need to add their Domain account to the local admin group and over write the local profile ?

Thanks,