I checked out the tabs in Nautilus last night, pretty awesome! I didn't even know that existed. I can see how that would be great if you are working in multiple folders, especially if you are copying/moving things (I assume you can just drag files in an open tab to the top of a closed tab to make the transfer). I often have multiple windows open when I do this kind of thing, which can be messy and confusing.
Good luck in getting it all to work the way you want!