I need to move about 35 users with Exchange mailboxes, 50 computers, and about 50 gigs of data from a Small Business Server (SBS) 2000 box to a new Windows 2003 domain in a seperate forest. There's about 16 gigs of mail to move.
What is the best way to move all of this stuff between these forest, with the least amount of work possible? I'd like to use a wizard-based tool (I don't care if it's a non-Microsoft tool as long as it's not many thousands of dollars) and I need to retain permissions, so the new accounts should retain SID history.
I'm looking for suggestions as to the best way to do this painlessly.