I'm in the same boat. I do EVERYTHING based on the file structure. It's one of the things I loved about Apples.
Putting the Devices down at the bottom is causing me to curse Apple every time I do anything. That's a lot of cursing. Also, what happened to the horizontal silder in finder? Why does the vertical slider in Itunes now disappear? Are you folks at Apple actively trying to upset us on purpose? If you are, it's working.
These changes are driving me nuts.
I feel like I got T-Boned in an accident by going from Snow Leopard to Lion. I don't like Lion at all.
Don't get me started on Lion Server.
So sad to see this drop in the quality of Apple products.
I only hope it's not a sign of more things to come now that Mr. Jobs is no longer with us (RIP).