QUESTIONS:
1. Can I just drag the WORK files to the Documents folder on the Mini?
2. Do I just drag/move the iTunes and iPhotos FOLDERS to the Mini?
3. How do I find and move the Mail folders and Address Book? It should be in the OSX Device, I think.
4. And same for Safari Bookmarks?
5. When I'm done, can I just delete the 3 Devices?
Gees, toooo many questions! ;-)
Yep, you can open the Work partition and then drag everything to the Documents folder on the new computer. Same for iTunes and iPhoto; click on the folders and drag them to the correct places on the new computer.
The Mail information is all on the old OS X drive. It's located in the Library folder in your home folder. To find it on the old computer, open the OS X partition, open the folder called Users, open the folder with your username, and look inside it for a folder called Library. Open that and find the folders called Mail and Mail Downloads.
You are going to copy them to the new computer. Unfortunately, on some new computers, the folder they need to go to is invisible. So click on the Go menu, choose Go to Folder, and type
~/Library
When the Library folder opens, copy the Mail and Mail Downloads folders into it.
You might also need to copy the file called com.apple.mail.plist from the old OS X (it's in the folder called Preferences in the Library folder) to the Preferences folder in the Library folder of the new computer.
Safari works the same way. Copy the Safari folder from the old Library folder to the new Library folder.
When that is done, hit the Eject button next to all three old partitions and disconnect the old hard drive.